People walk past large advertisement led signs for tablet PC at the Xizhimen Station of Beijing Subway in Beijing, capital of China, Oct. 14, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Li Mangmang)

Passengers use their cellphones in a train on Line Ten of Bejing Subway in Beijing, capital of China, July 18, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng) 

Passengers use their cellphones and tablet PCs in a train on Line Four of Bejing Subway in Beijing, capital of China, Oct. 12, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng)

A citizen watches video on his cellphone in a train on Line Four of Bejing Subway in Beijing, capital of China, Oct. 12, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng) 

A citizen looks at his cellphone at Renmin University Station of Bejing Subway in Beijing, capital of China, Oct. 12, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng)

A passenger uses her cellphone in a train on Line Two of Bejing Subway in Beijing, capital of China, July 18, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng)

Two passengers take photos of the subway map with their cellphones at Xizhimen Station of Beijing Subway in Beijing, capital of China, Oct. 14, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Li Mangmang) 

Passengers view information on a cellphone at Dawanglu Station of Beijing Subway in Beijing, capital of China, Nov. 16, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng) 

A passenger uses his cellphone at Lishuiqiao Station of Bejing Subway in Beijing, capital of China, July 18, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng)

A citizen uses his cellphone in a train on Line Four of Bejing Subway in Beijing, capital of China, Oct. 12, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Zhang Cheng) 

A citizen uses her cellphone in a train on Line Two of Beijing Subway in Beijing, capital of China, Sept. 23, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Photo taken with a mobile phone) (Xinhua/Zhang Ruiqi)

A passenger listens to music on her cellphone while waiting for the train at Haidianhuangzhuang Station of Beijing Subway in Beijing, capital of China, Nov. 10, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Lv Xun)

A man uses his cellphone in a train on Line Four of Beijing Subway in Beijing, capital of China, Nov. 10, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Xinhua/Lv Xun) 

A passenger looks at her cellphone while waiting for the train at Xuanwumen Station of Beijing Subway in Beijing, capital of China, Sept. 8, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Photo taken with a mobile phone) (Xinhua/Zhang Ruiqi)

A passenger listens to music in a train on Line Two of Beijing Subway in Beijing, capital of China, Sept. 23, 2012. Portable digital products like cellphones and tablet PCs have become the main instruments for people, especially young people in China, to entertain and view information when they take public transportation vehicles like buses and subways. According to statistics, by the end of September, 2012, there are 550 million netizens, more than 290 million smartphone users and 280 million weibo, or micro blog users in China, among which young people make up a large proportion. Digitization, with the great convenience it brings to people's shopping, socialization and entertainment, has become a way of life for modern young Chinese. (Photo taken with a mobile phone) (Xinhua/Zhang Ruiqi)