Is is truly surprising how the company that took the mouse mainstream now can't make one that's simultaneously aesthetically pleasing and a joy to use.
I can't use the Magic Mouse because it doesn't fit my human-sized man-hand: it has no palm support. And this strikes me as odd because how it looks should be extremely secondary: the only way to effectively use a mouse is to look at the screen not at the mouse, and even if you were to look at it, your hand is covering it up.
For those reasons, I find it neither aesthetically pleasing nor a joy to use. It's unfortunate that aesthetics have been merely associated with how something looks when it's just sitting there and doesn't take into account a pragmatic, active angle (not saying that that's how you associate aesthetics, brianwillis).
It has no palm support because you're not supposed to put your palm on it -- it's meant to be held by the thumb and pinkie at the sides (like the pilloried hockey-puck mouse).
If it was shaped to rest your palm on it, you wouldn't be able to use any of the multitouch features without fully removing your hand first.
And I think that may be part of the problem: I didn't find that to be a comfortable position to use the mouse even for short periods of time, having to hold my fingers and palm up and not having a resting, but still moving the mouse, position. I found it extremely hard to get fine control of positioning while clicking, I'd always end up moving the mouse slightly while clicking (incidentally, I have similar issues with the touchpad on the MacBook Pro).
Apple makes great computers, great phones and sucks at pretty much everything else.
Microsoft, a company that found out in the mid seventies that the software business would be much more profitable than hardware, is making software of questionable quality but manufactures fantastic keyboards and mice.