In Tokyo, the mobile phone is so much more than just a means of 'on-the-go' verbal communication. Blessed with companies pushing the boundaries of what is technologically possible, the Japanese have become the world leaders in mobile web surfing, video calls, picture messaging and every other new innovation that can be squeezed into a handset. Mobile phones are well suited to Tokyo life where the population is constantly on the move. There are now even street side charging stations where flagging phone batteries can be re-energised. 3G technology arrived in Tokyo two years ago and although...