When I was there (boot loop after 1.0.1 install) a few days ago, I had to do the 3 finger data reset (power, Volume up and Home key press and hold) and then re-register the nook with B&N.
Motorola Droid - Rooted since the beginning. RETIRED
Nook Color - Rooted since the beginning.
Now Droid Bionic - Rooted since the beginning. RETIRED
Galaxy Nexus 4G - Son-in-laws Phone Now
Galaxy Note 2 - Wife's Phone Now
Galaxy Note 3 - Rooted Stock with Wanam options