Out of curiosity, have you considered the viability of taking the FB interface and integrating it into a portable app? Some of us may be insane enough to want to do this sort of thing on the go--check out current score wars and statuses, add songs to the shopping cart, etc. Lots of apps have Facebook integration in-built (I don't know if I've seen any where it's outright REQUIRED), and can be opened from the Facebook app (e.g. Spotify, Cooliris, etc.).
It's a thought more than anything else, and no doubt has crossed meeting tables from time to time, but I figure I'd bring it up here to see what kind of forum support there might be in such an endeavor.