In the last version of its drivers dedicated to Windows, NVidia (accidentally?) released the name of forthcoming products not available on its catalog yet. Those models are dedicated to mobile computing:
NVIDIA GeForce GT 330M
NVIDIA GeForce 310
NVIDIA GeForce 305M
NVIDIA GeForce 310M
NVIDIA GeForce GT 335M
NVIDIA GeForce GTS 350M
NVIDIA GeForce GTS 360M
One of those GPU might soon by used with the GF 9400 M in a MacBook Pro, but we have more change to see them ending in an iMac, if Apple decide to refresh the line prior the introduction of Nehalem-based hardware. This list is also a perfect example how naming can make comparison a true nightmare for customers.