I don't know how many people own a 360 on this site, but I'm guessing it's pretty close to 70%. I think a gamertag app would be cool. And maybe integrate a friends list into it and have online status and current location (Ex. 'Now playing Halo 3 in Team doubles'). I have several widgets that do this on my mac, but I have no Idea how they work or how to port them. Here's the site I got my Friends list widget from: http://1337pwn.com/ Maybe you can find some coding for it or steal source code and make a web app. Heck even Jiggy might be able to process something like this. Any other ideas that would help this along?