I just got my Acekard RPG when I saw the news about the new model, got scared for some minutes thinking I had bought something that just got outdated when I received it. But yeah, I guess no built in memory, usb port, not open source and lower price seem to be the essensial key facts, not that I have read up on it too much... saw some comments on games running/loading faster as well, no biggie for me at least.