LookMiiUp on Facebook Platform?

Last year, I made a site called "lookmiiup.com" that's for looking up a person's Wii number (like an ICQ# for a Wii; used to add friends and other stuff in the future) by identifiers like AIM name, phone number, etc. Yea, it's all but dead; I still have a release that I haven't done because of time / lost steam :(. Thinking about the new Facebook Platform, why can't a Facebook member ID be an identifier? And why not have it broadcast to your mini-feed when you register your Wii, and list all of your registered friends when you go to the LookMiiUp application?

The Wii has a fairly small market though; only about 2.75m units sold in the US. However, I'd guess that 50-75% of that number have Facebook accounts. Nintendo projects 35m units in the US by 2012, and it seems reasonable given the price gap and target demographics of the Wii vs. Xbox360 and PS3.

It would need more interesting features than just saying "here's who has a Wii" though; what games they have, or something. But even then, what's the incentive for them to add their stuff aside from it being shiny? Probably not much. Honestly I don't even think I'd use it :(

The other problem is making money; I doubt that it would ever make dollars. It might give a launch pad for future applications though, simply by giving an audience to market future ideas to or simply for credibility.

Thoughts?