I'm realize I am mighty late to the party but anyways, renaming GT210 as 310 makes is just plain stupid as GT210 (chip codename "GT218") uses the old G80-G200 series architecture, not Fermi GF100.
TSMC struggles with 353mm² Evergreen. It is outright madness to believe there are no yield problems with Fermi at >500mm². Obviously nV has been pushing Fermi back just because TSMC can't get their 40nm yields at acceptable levels - dumping Fermi on the market now would not be profitable for nV, otherwise they would've done it.
Anyways, I'm a gonna buy a "GTX380". Once it arrives.