This has just been featured at Web Summit and looks awesome. From Wired's article: "We can converse and make friends with strangers all over the world today thanks to the internet, but using WholeWorldBand, you can also collaborate with them musically. And when we say strangers, we mean anyone from beginner bassists to bonafide rockstars." - they've got legit rockstars signed up already, including the Rolling Stones' Ronnie Wood.
Pivot