i've rooted my nook as well, installed froyo 2.2.1 on it. I don't know if its the connections between the n900 and the nook (the wifi connect to home running fine) just the adhoc tethering from n900. I've never had any problem tethering to my ipod or my laptop using adhoc tethering from the n900. Just wasted $12 on Joikuspot. Thought i try it out to see if it work on the nook, now i can't even get the ipod to connect to the joikuspot. I guess i have to download the mobile hotspt back again. Maybe load something else on the nook.