It's pretty neat. The inbox picture isn't the easiest to pick out that it's an indbox - make it look like the normal window view of mail with the split views fo

It's pretty neat. The inbox picture isn't the easiest to pick out that it's an indbox - make it look like the normal window view of mail with the split views for easier recognition. Besides that, the top menu animation is a bit distracting (which you're going to reduce - from your comment above :) And it would help if you had most of the inbox if not all of it showing up without scrolling down a la Apple.com style. You also have a pretty good search layout, which is nice, but it would benefit more if there were pictures. Personally, I'd die for to have a spotlight like/apple.com search like filtering with tiny thumbnails of books. As about your next iteration, you could potentially do some collaborative filtering for recommendations. Of course, that's something for the long run and is essentially a non-trivial yet money maker (if you're into that sort of thing).