Unique NXE Avatar URLs discovered

An anonymous tipster has informed Xbox 360 Fanboy that Avatars -- the cute, customizable user characters that will launch with the New Xbox Experience -- will each have their own unique URL (which won't open in Firefox or Safari, by the way). The URLs in question lead to PNG files of a users Avatar. The URLs lead to images of at least three sizes, as demonstrated in the image above. The Avatars belong to Microsoft's Trixie and Chris Paladino by the way (we tried plugging in one of our own gamertags and were greeted with nothing but the original Xbox logo). There is a full body image along with two smaller images of user created Avatar Gamerpics. All of them are stored at the site avatar.xboxlive.com, which currently leads to a blank page. Will these images be part of a broader social networking platform? For now, we'll just have to wait until Microsoft decides to share more about the NXE.