I still have no idea what the crap you guys are talking about... my the "acceleration curve" doesn't exist, at least not on a trackpad as far as I can tell. On the mouse side of things, my logitech mouse always served me well with my G5, my dad's mini, and my fiancee's eMac.
Hard to click on a button? Wha?
Anyway, Apple has always listened to their customer. Their loyal customers have been using these products for a lot longer than most current users and have been with OS X since the early part of the decade. We are used to the mouse because it's all we've ever known. To change it would be betrayal to people who had become accustomed to it. You will either become accustomed to the differences or you will use some third party software to make your computer run more like you're familiar to, i.e. Windoze.
And Doug... what are you talking about. You sign up, post once, and all it is is a complaint saying that the X,Y directions are "significantly different" on Mac OS... I'm not sure what you're trying to say, because X,Y are the same. If you're holding your mouse pointed in the same direction (not changing the angle of your hand) then X,Y are a set location that cannot be changed.
You are all insane.