B&N has priced it at a princely sum of $139, and they are throwing in the wall charger that this device sorely needs (the regular Nook Touch doesn't have it). As useful as the front light will be, it's probably a battery hog. You can tell that by the drop in battery life from 2 months to 1 month.
Curiously enough, B&N managed to shave off half an ounce from the new Nook Touch somewhere. That suggests that either they're playing fast & loose with the stats or it has new guts. Given the new light I would guess the latter.
I'm looking forward to the first teardown. If this does have new hardware then it might make an even more attractive E-ink tablet than the older Nook Touch. And with the front light it will even be able to lmost compete directly with the LCD screens on real Android tablets.
The following video doesn't show much, but if the real device works like the prop then it's going to be a tempting buy.