Guys, I ve been using touchAble with my ipad since few days, and i can say it is the best controller for Ableton live ever!! And super cheap if you own an ipad. I own a lauchpad, a trigger finger, a nanokontrol and a nocturn, but don't use it anymore...
My workflow is 10 times faster, and it is so fun to use, i highly recommend touchAble, and i don't know why Ableton didn't make this kind of app themselves!!
Just want to share this gem, this forum is wicked! (just discovered it few days ago)