Yay, Optimus. Without the ability to switch to a less powerful integrated graphic card, using a laptop with semi-powerful discrete graphics for things like school work, or email/movies on the plane, would be impractical. With GPU switching, it's not a big deal.
These are late though. Nvidia should have had these cards ready weeks ago to better hit the college student market... which is ideal to market these types of GPUs to.
Now, who's Nvidia going to sell these to? Bored IT pros who want to play Bad Company in between support calls? Cuz the HS gamers don't have the money, business users don't care about the GPU performance, and and average joe non-IT adult doesn't know what Nvidia or a GPU even are.
Just another late release by Nvidia completely missing the boat for potential buyers. Wow their company sucks lately.