There will be NO 9400m working with an Intel Nehalem CPU! Nvidia's license doesn't permit it according to Intel. Intel isn't stupid, and it's not going to let Nvidia steal its business. It definitely learned from this loophole!
When Apple switches to Nehalem in the Mac notebooks, we will see an Intel integrated graphics solution, OR Apple will completely have to remove the integrated graphics and just use a dedicated card. The problem with the newest Intel integrated graphics for Nehalem is they operate at around 55 to 60% of the power of the Nvidia 9400m!
So, the problem is all of these MBPs now with ONLY a 9400m. MBP users are not going to be keen on losing 40% of their graphics capabilities! So, Apple will have to put a dedicated card in there???
My hope is that somehow Nvidia will pay Intel to make them happy. Or, that some moderator will show that it's good for competition to make Intel compete with the GPU!
But in all truth, the next Mac notebooks will probably NOT have an Nvidia GPU... so we should all pray that something changes. The Nvidia GPU has been absolutely amazing for Macs! Not just the MB/MBA now... The Mac mini. The 13" and low end 15" MBPs. The iMacs have it! And with mini Display Port, they all have become capable of driving up to a 30" ACD!
It will be a sad sad day for Mac customers when Nvidia loses this battle. It's heating up and Arrandale is just around the corner. No Nvidia with Clarksfield or Arrandale for sure (unless something happens)! It will not be fun going back to Intel integrated graphics!