My required features:
Orientation switching (landscape/portrait)
Cropping (not display/cut out dead space around poorly presented pdfs)
Aardict dictionary integration. (I use Aardict with offline Wikipedia and Wikitionary for lookup and read quite a few technical books and journals, which are generally in pdf format, so this one is pretty important to me.)
I've seen a user created one in the Nook NST Developer forum which meets the first two, but sure most do... Anybody able to give me a recommendation that matches all three?