Hi,

There is a city-wide mobile treasure hunt on Saturday, June 4 in Kansas City - looks like it is hosted by Samsung and SCVNGR. see: CNBC Article

You have to sign up to play but the FAQ suggests that you have to be selected to play. Anyhow, details are here if you live in the area and feel like giving it a go:

Explore with Nexus S 4G


Writerian