
Video demo here:
http://www.gamesetwatch.com/2010/04/nikes_grid_turns_london_into_g.php?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+gamesetwatch+(GameSetWatch)&utm_content=Google+Reader
This reminds me of an idea I have been trying to push, I still love these badges and cannot wait to use them on a brand soon:
http://www.nerdmeritbadges.com/