This looks pretty cool; haven't tried it yet though. Leave a note if you have.

Looks pretty cool. We recently had a visit from one of the guys behind SpliceMusic.com -- it's another interesting 2.0 music remix project.

SpliceMusic.com looks interesting too, but they have been around a bit longer. I'm waiting to see if my brother tries JamGlue out to see what he thinks, since he's more musically inclined than I am.