I thought that was pretty good actually. I should probably say something good about Nvidia or else I'll sound like a fanboy, but they haven't really needed to release a new architecture. And RV770 is actually based off R600, just like GT200 is based on G92 I suppose.
Of course they are also guilty of this:
I think the HD 4770 will be a pretty amazing card if it really does come out at <$99.