First of all: congratulations and good luck!
IMHO every new p2p application is welcome - and especially so when the application comes from people close to p2p communities like is the case with you guys.
Your basic approach sounds healthy. Regarding the architecture my advice would be to pay attention to the issue of permanent, verifiable peer identities. It's a bit trickier to implement in the decentralized environment than on a centralized system but it is worth it. Building on it you can have safe communications, safe hotlists, even safe communities if you will support group formation on your own platform at some stage.
And one more thing: the name rocks!
- tg
