Well, it's an unofficial screen cleaner, but it works wonderfully. Get the sunglass cleaner from Sunglass Hut. It comes in a little pouch containing a spray bottle and microfiber cloth. I was sitting here cleaning my Maui Jim sunglasses and thought...if this spray is safe for these glasses (they are kind of expensive) then it should be safe for my iBook screen. I decided roll the dice and give it a shot. I now call it the iKlear that doesn't streak. It also cleans the outside case very well. Give it a try!