Found this, SKYMTL (its not intended for "boasting anyones ego or providing additional "airtime"), seeing as how this is the Rumour Mill section of this Forum,,
TG Daily - Nvidia to rename its graphics chips
Jeez guys, they just came out with the new GTX2xx Series a few months ago, if things go the way they have for me in the past, seeing as how I just purchased my new 280, the new 55nm GPU's will likely surface next week..hahahaha.
I would specualte and say we'll likely see them prior to Christmas.