And Accordance lets you put all your personal books on your iPhone/iPad.. you cannot do that yet with them (and no time soon either, although they will sync smaller personal books to other desktop machines you own). As nice as somethings there are the speed of their mobile app compared to Accordance is night and day.
Actually Dan, that is not quite true. You can upload to your road almost everything in your library. The only thing you miss are the sides and collections setting. But you can have almost your entire library in the ipad and works exactly like Accordance does.