This might've come up here before, but I'm new to the NC and have it running CM7 on an N2A card, this is one of the more awesome "discoveries" I've made.

If you use Calibre, you can wirelessly download your books from Calibre to Aldiko. I really like the Aldiko app. Details here:

http://manual.calibre-ebook.com/faq.html#id4