when you buy an i core CPU from intel you get a package with the CPU, graphics and the chipset in the same packaging. you can add a discrete graphics adapter if you want.
From what I read Nvidia can't sell chipsets that work with i core CPU's because they don't have a license for the DMI patent. Apple can still sell discrete Nvidia graphics but not the integrated 9400M with the i Core CPU's.
my prediction is the entry/ low end will be the intel GPU which isn't as bad as once thought. the discrete is anyone's guess. HP has a nice laptop now with a discrete graphics card with 1GB of graphics RAM
i did a little digging and i read that the intel graphics chipset is lower than the 9400m, which would make me one depressed dude.