Well if it's any consolation the multitouch trackpad update for the new unibody Macbooks broke tap to click. Every time you use two finger scroll to scroll a web page, for example, it also pops up the right click menu since tapping the trackpad with two fingers acts as a right click. Before the update this problem didn't exist because it was broken in another way and you had to use three fingers to right click instead. The only "fix" is to turn tap to click off, so it's not like the unibody is an improvement over the plastics in this case.