I don't like that I still need to connect to the brick via a cable because if I still need a cable, I might as well connect directly to the PC or the monitor (nowadays, monitors have USB hubs). Of course I can't think of a better design - perhaps something flat in which I can put the HHKB on top of, or perhaps it acts as a wrist rest but is actually the battery.. that, at least, is more practical than this brick.