Of all those 78 products to steal the show, the only one I found interesting was the B-Control DeeJay. The hardware interfaces with software in real-time, any actions you take on the control surface like scratching, etc., are shown on the screen with no delay (that I could tell). I suspect the software is PC only, but I'm not 100% sure of that.
On the PC screen you can see both waveforms that you are controlling with the turntables. It's a fun little box.
The controller is very plastic and lightly constructed. Not sure how well it would hold up to banging around on live gigs, but it is a nifty little unit.
The rest of the 78 new products were pretty ho-hum, and I can safely say they did not steal the show.
It's hard to say if there was one product that stole the show this year. In the past Line 6 has had huge crowds at their booth for various Pod releases, but I don't think that happened this year.
Korg was demoing their new $7,000-8,000 keyboard, the Oasys, but the crowds were pretty sparse for that, at least the times I passed by. I never saw more than 2-3 people at a time listening to the demo.
If anything stole the show it might Edirol with their new R-1 and R-4 solid state recorders. In fact, Edirol seems to be making a push, and they had a bunch of cool little products on display. Some firewire and USB audio interfaces that looked sharp, and a bunch of other things, including a new shotgun stereo mic designed especially for the R-4.