Glad I looked back through the thread because I was just going to suggest checking video out.
While I was hoping for a sampler that I could use to organize large numbers of samples for something like a complete live finger drumming set, I have to say that this is a pretty cool device. I can probably go on living with NN-XT (and Combinator layered Kongs) for the foreseeable future.
As for Mimic, I can really see using this exactly how they mentioned it in Ryan's video - grabbing a sample or two from sound packs and mangling them all up and down the idea spectrum and then using them as basis for a song.
I used to submit tracks and videos to DJ Pain 1's Unfinished Friday and Mimic would have been the perfect starting point for my work on that:
DJ Pain 1 would post a sample on Friday and have people submit their tracks made from the sample. I would pull the sample into Reason - beat match it, chop it, reverse it and otherwise mangle it in the sequencer and then add effects to build entire songs that I would make into videos. Mimic will be a great addition to this workflow. The Data Broth video really shows all the creative possibilities here.
So while I am a little disappointed that we didn't get something that would supplant NN-XT or Ableton's drum rack, I'm pretty excited about what was delivered. If anything I see this as more a functional replacement of NN-19 (which works fine but needed replacing) and not NN-XT.