It is that hard to learn to use two buttons? I have always been a pc person. But I can't imagine not having two buttons.
I'm a little behind on things, but I thought I would weigh in on this topic that at least had Molly worked up.
Anyways, here's my thought on keeping the one mouse button on a laptop (in this case the McBook): it makes it so much simpler to use and adjust to (for those going from normal mouse to trackpad) with only one button to worry about your thumb hitting than the two button setups offered by feces, er, PC's (har!). Anytime that I end up using any Windows-based laptop, I always have to use two hands to ensure that I don't get frustrated by hitting the wrong button constantly.
If you want viable two-button capabilities on a laptop, I'm a proponent of buying a cheap ($20 or less) third-party mouse and carrying that around. Sure, it's one more thing that you have to lug around with your lappy, but in use, it is far more comfortable to use than a multi-button trackpad (or even nub-thingy).
Alright, that's my two cents. Anybody else have some input?