Driver Yao Leining tests his Wi-Fi signal in his taxi in Zhengzhou, capital city of Central China's Henan province on March 14, 2012. Yao used his cell phone as a mobile Wi-Fi hotspot and started providing "free Wi-Fi service" to his passengers on March 14. That same day, he announced it as the country's first Wi-Fi service taxi on his Sina weibo. A netizen said although it's a technically easy thing to achieve, it's commendable for Yao's innovation and desire to provide better service to passengers. [Photo/CFP]