My point was and is, that the bump to HD was the easiest perceived quality bump for graphics in this generation. It´s true that there is 1080p to aim for and i would personally like that. But i doubt it will be everyone on this board that would see any advantage in 1080p, considering the "true hd" discussions that this board had when Sony claimed they had the only "true hd" Console
Another resolution bump would imho make less difference than the jump to 720p, first of all, it requires a big screen to see the advantage, and second of all it may suck resources from other important graphic elements.
Considering how close the 360 and the PS3 is today in graphics, at least for the "ordinary" user, i expect any advantages to be even harder to spot in the next gen. Unless Sony of Microsoft really screws up on something, for example storage.