yeah, i think i said it befor but both ati/amd and nvidia both say they will be shipping the 28nm cores by the end of the year or sooner, so HD7000 and GTX600 will be at december or early 2012 most likely.
From what I understand, Nvidia 28nm. has been having problems and wont be released till the first of next year. AMD 7000 series 28nm. is still on schedule sometime before christmas.
Nvidia
http://www.xbitlabs.com/news/graphi...nies_Plans_to_Release_Kepler_GPU_in_2011.html
AMD
http://news.softpedia.com/news/Firs...2011-According-to-Leaked-Roadmap-189401.shtml