Just a quick FYI for those looking to protect your MB, particularly the white ones. I have a white MB and put the Marware vinyl sheet on the wrist rest after reading about the staining it would get from just general use. I then discovered Applepeelz (
www.applepeelz.com) and think that is the best way to go for protecting your laptop. I put the Applepeelz over the rest of the MB, except the wrist rest and it does a fantastic job of keeping the original case clean. Through normal use, you'll probably notice staining on the track pad, button, and other parts of the computer but the stain is only on the mylar protector, not on the main case plastic.
One thing about the Marware protector...it sticks to the wrist rest very well and will easily leave some residue behind if you remove it and that stuff is almost impossible to get up, even with Goo Gone! The Applepeelz stick securely but don't leave any residue when you remove them.