I just submitted on kickstarter. Hoping to have live by Friday. Price is $350 for the first production run of 100 units. I'll post the link as soon as it's approved.
I mean, not to be a promo whore, but I can't DJ without it. For me it's the missing piece of the puzzle for using Traktor... Obviously it works the same on Serato, Ableton, etc. I've also used it in the field when I didn't have a dj mixer at parties as dj mixer. Just go line out from the interface (or worst case headphone out jack), set to mix internal and you map the faders to channel faders and voila, a DJ mixer with 100mm faders. Or map to the knobs for some rotary action :P