iPhone to Support eBooks Too?

Somebody want to take a stab at explaining this screenshot? Notice the category between “TV Shows” and the emusic playlist? It says “Books”! The shot is from this blogger’s iTunes, into which the official eBookNewser iPhone was plugged. This is iTunes 9.1, the new version that supports eBooks. While the books icon showed up under the iPhone, iTunes wouldn’t allow eBooks to be dragged and dropped onto the phone.

What do you all think? Is eBook support coming to iPhone soon too? Is this just a messup? Is iBooks for iPhone on the horizon?