I don't have an iPad yet (a combination of the NYC area shortage and using the money on actually doing things with my fiancée instead) so I don't know what books are in iBooks yet, but are there any coffee table style books for the iPad yet?
There was a book with less common photos from the Apollo missions which I think would look great on an iPad.
There was a book with less common photos from the Apollo missions which I think would look great on an iPad.