Full, complete backwards compatibility as in, play the old games without any strange things happening to the sound quality or, picture. Otherwise I fear the new generation. Nintendo seems to have completely abandoned the idea of the traditional controller outside of its handhelds and, I fear the next wave of consoles will be the first to feature things like games that require you to be online at all times to play them and, triple-A games that can only be bought digitally. I fear the future at this point. Excuse me while I cry in a corner and stroke my copy of Link to the Past...