I've been having a tentative look at this recently, having previously not been that interested because frankly the idea of taking a computer into a live set up and having it crash on me just fills me with horror. I have to say though, this bit of software looks really lairy - I'm just downloading the demo now. One thing I'm slightly confused about though is, if I wanted to incorporate it in a DJ mix, say I'm mixing on two decks, how would I go about bringing Ableton into the mix? I suppose I'd have an out from my mixer into my sound card which Ableton could grab the tempo from yeah?