Found on smartmobs :
Uncle Roy All Around You sets online players alongside players on the streets of London. Street Players search for Uncle Roy through the back streets, the tourist traps and the leafy boulevards of Westminster with a handheld computer.
Online Players cruise through a virtual model of the same area, searching for the Street Players and looking for leads that will help them find Uncle Roy.
Using web cams, audio and text messages players must work together.
They have 60 minutes and the clock is ticking…
That environment xould be very interesting to test my hypotheses concerning location awareness on collaboration.