And don't think I don't see you sneaking in "liseuse", Zelda. I think we're calling them "Freedom Books" over here.
Sorry... let's now resume the actual discussion. I like the idea of "Views" or "Filters". Show me all books I haven't read. Now show me all books I've read and want to review. Show me all books currently on my Freedom Reader (heh). Show me all books I bought from Sony and haven't read.
The ability to create one's own categories, in a simple and straightforward manner, then, would be key.