My understanding is that several former Ableton engineers became frustrated with the direction management wanted to take the software, so they left to hack on what they would have built for themselves. The result is Bitwig.
It does look like a very exciting project but I'm slightly worried that Ableton's legal team will not be too happy with it. There seem to be quite a few visual similarities, I'm assuming this sort of thing would fall under Ableton's intellectual property rather than the devs?
http://bitwig.com
My understanding is that several former Ableton engineers became frustrated with the direction management wanted to take the software, so they left to hack on what they would have built for themselves. The result is Bitwig.