@ring0_event
I think it's a question of which Appstores are accessible. I don't know whether those are on the Amazon Appstore, or whether they need access to the full Android market.
Just looking through the post on the Dev forum, Mantano has already been tried, scratch that.
I don't know whether this is useful, a list of the Apps which work on the rooted Nook Touch (
http://forum.xda-developers.com/show....php?t=1176313).