I just got the Ghost Armor for my Razr. I was looking into the matte or carbon fiber finished but they didn't have any in stock at my location. So I tested the standard clear finish and liked it even more. It gives a bit more grip.
The Droid Razr ghost armor actually doesn't actually cover entire phone. It covers the screen, entire back, camera area, and top edges. But the sides aren't covered, which is fine with me since I don't feel the edges of the ghost armor any where.
I usually keep my Motorola Droids naked anyways, but this a nice alternative with least amount of added bulk.