Two way interactive-beginings

Been set a new project today, Two way interactive. Its got to be a 60second interaction using mobile phones.
So far my main ideas are based around exsisting games. Such as the paper folding story/person game, or a live version of lazer quest. Where u have alerts sayign when someones near....try get as many points as poss in one day shooting people as you go. Thought of how it would be done and been told to look into a live game happening around manchester, where people are at home and everyone else is running aboutavoiding mines, with updates via phone. Need to think them thorugh in terms of technology;....ect..... Iv started looking at blue-tooth technology, and loving this one thing i came across. A blu tooth club.
http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1258748
Just seeems a really good idea, not practical for anysense, but at the ssame time creative and just random.