How much thickness does it add to the bottom of the iBook? I'm thinking of the marks the keys may leave on the screen in some cases due to the very small clearance without such a keyboard skin, and then how would it be with a skin. On Wed, 12 Jul 2006, Matt wrote: > Thats a problem with the iBook G4s. You can get the > keyboard replaced again then buy on of these. > > http://www.iskin.com/protouch/pb_features.html . . .