Short answer:
No
:)
The onboard graphics wouldn't be able to handle any games or anything anyway but I don't believe its possible to use both onboard and discrete graphics at the same time. However I've seen some crazy hacks down with PCs so it 'may' be possible but I would just wait ;)
Current Favorites:
Wii - Muramasa, MH3, Metroid Trilogy, RS2, Okami, RE4, COD, Dead Space, Scarface
PC - L4D, TF2, BFBC2, Killing Floor, Aquaria, Warsow, many UDK indie games
Mods - MechWarrior:Living Legends, Star Wars: Galatic Warfare, PVKII, Goldeneye Source, L4D mods
PS3 - Demon Souls, Way of the Samurai 3
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