Remember Res Rocket Surfer and Google Jam? This one is a new thing to collaborate with people over the Internet. (If you sell your soul to a Mac-only application.) Technical discussion (for computer geeks). If this doesn’t suck, expect a clone that won’t gouge you down the line.
edit: dunno how this post became the unofficial BandHub support thread. But anyway, while you’re here, why not check out my book, it’s got a music industry chapter.