have any of you actually gone to apple's site? it explains a whole bunch of things there.... As someone stated earlier - yes, the trackpad is, in fact, a button. It may sound confusing to some, but actually seems much easier when taking multitouch gestures into account... And as for using it in another partition like windows, linux, etc. - there is nothing to worry about. I'm sure apple will update bootcamp so everything is up-to-date.
Hope that helps! 😉