Pocketbook is supposed to read rss, though I haven't tried it myself.
Organizing books is very easy, you can create folders and move files around without using a computer, you can add books to favorites and you can even organize your favorites in folders, so that you have a simulation of the 'collections' used by sony, if you prefer that to folders. The two or three (don't remember for sure) last opened books are always visible on the top of the main menu so that you can have easy access to them any time.
It is so versatile and customizable, the ergonomics are great and the cover ingenious. Is it obvious that I really want one for myself?
I don't know much about the Pocket Pro, but the Pocketbook is highly recommended.