It requires OS X 10.6.4 Snow Leopard? Typical Apple trying to push people along the upgrade treadmill...not even OS X 10.5 Leopard or 10.4 Tiger are supported.
That said, Apple 'Books since 2005 hold the distinction of being the only laptop trackpads I can stand, if only because they don't screw with the cursor whenever my palms touch the upper corners. Two-finger scroll is also very nicely implemented.
...Gaming on a trackpad? Seriously? You can try, but I'd rather stick with my Logitech G500, its loads of physical hardware buttons with good tactile feedback, and precise tracking.
Anyway, I'm wondering how Wacom's second-gen Bamboo line fares in comparison, since most of them now double as multi-touch trackpads as well. (They already win on pen input, but is the two-finger scroll as smooth?)