Excellent. Your challenge then is going to be how to keep it in people's minds long enough to gain a decent amount of committed traction. So many web apps like

Excellent. Your challenge then is going to be how to keep it in people's minds long enough to gain a decent amount of committed traction. So many web apps like this come and go, but I have a feeling if you keep this simple and do some clever marketing (e.g. alliances) then this could be a real contender.