while not surprisingly windows xp only, this looks a tad lame. seems like they are trying VERY hard 2b hip. The idea is interesting though… sharing music with friends, as a party playlist while chatting online. I think it seems a bit too windows-like. especially since it is really just MSN messenger and WMP rolled together through a desktop widget. It seems to be missing some simple elegance. Something (I guess) only mac users can appreciate.
I bet that you (I don’t code…) could crush the functionality and general utility (not to mention the presentation) of threedegrees with some konfabulator glue and iTunes with iChat. perhaps use slimp3 to stream until itunes finally offers shared libraries (v.4?).