I've seen this before with other android devices so no biggie. I powered the unit off.
Now it won't turn back on. Holding the power button now for about 20 secs and nothing.
The battery is at like 80% and I even plugged it in to see if it helped but no good.
I did root it at 1.4.0 and used the Block OTA method with titanium backup but nobody else seems to have a problem.
Is there a way to boot in recovery or something ? Perhaps a trip back to B&N will be needed.