I hope that someone comes up with a way of giving the user more control over which card is active, whether it be Apple or someone else.
I am noticing more weird instances of switching to the 330m, and in my opinion unnecessarily.
For instance, in Firefox, I can have a bunch of tabs open (Right now - Facebook, Macrumors, TUAW, Gizmodo, Engadget) but as soon as I go to my iGoogle page the 330m kicks in. As soon as I close it's tab, the Intel goes back on. My 2007 Macbook was able to handle iGoogle without a problem, is it really necessary to use a discrete GPU for Google??... NO
It's also interesting to watch the battery while doing this. Right now, at 96% it says 7:22 remaining, upon opening a tab with Google, it goes down to about 6:00 remaining whether the tab is in the foreground or not.
Note - I am only referring to iGoogle - the classic Google page does not force the use of the 330m.