Switching graphic cards on MacBook Pro is a nightmare

Sometimes I, all the sudden, need more graphics power because I'm opening Photoshop, iMovie, etc... at the same time, or maybe I wanna play a game. So in order to do this, I must quit everything since log out is required to switch graphic cards!.
I heard some laptop has the same feature for Vista and it works =S how come it works on such OS and... Apple couldn't make it work this way on it's own OS?

The MacBook Pro is a product out of this world... but this "feature" is a Windows-like torture. Will we ever see a patch for this? If so, (thanks and) when?

(Please, on Leopard)

Thank you =) bye!