I suggested a while back that sub-forums for devices, stores, and books would be good. That way the people happy with their ebook readers wouldn't have to wade through the Sony sales, the people looking for a deal on a device wouldn't have to hunt through books they can't use yet, and I'd set up camp in the bookstore section to wait for O'Reilly sales.
I'm a little worried, though. They adopted my suggestion of a book promotion forum, and since it opened, I've bought five or six books, of which I've finished two. My TBR list is about to pop a trouser button. I'm not sure I want something else that makes it easier for me to find things to spend money on!