Nope. Apple makes their own touchpads for the iPods and laptops. They started doing this in February of 2005, and on the linux side, the touchpad ends up using a module called "appletouch" integrated at 2.6.14.

Not sure why they decided to make their own, but IIRC, thats when they also switched over to multitouch for scrolling on the touchpad, though this was possible on some prior models with a driver hack.