Not really, as I wasn't looking to get one anyway (a 5850 and a 470 are plenty). Until some half decent games with graphics that require better cards, new GPUs seem a bit pointless. Hopefully by 28nm we'll see better cards and games to match.
when they delay the launch i'd expect AMD to tweak 6970 to match or surpass GTX580 performance. the worse i'd expect the performance should be between 580 and 570 but when the cards out i'm quite surprise to see the performance only match or barely faster than 570. but at least i'm not disappointed to see the performance and for me the performance already good enough for the most of game out there.
so...will we see price drops on nvidia 580 and 570 specifically?
I somewhat doubt that. One thing that AMD did awesome on this set of cards is CF scaling. And what is a 6990? A dual GPU (CF) card. I don't really like dual GPU cards or CF/SLI, but in terms of raw performance, it should be quite good. The real question is what (if anything) will NVidia answer with?