Here's something I thought was interesting - and somewhat 'mobility' related: the first major alternative-reality game that combines to such a degree virtual movements with 'physical gaming' in daily life. Perplex City is a collaborative puzzle game that combines online adventure with adventure on the streets.
It says: "Imagine a game played by thousands of players around the world. A game played through websites, text messages, billboards, magazine adverts, sky-writing"
And there is a £100,000 prize for the one who solves the puzzle and finds the 'Cube' - now are we moving into the realm where the virtual and physical blurs....?
Time for some sociological research on the gaming world?