I just bought the Apple Bluetooth keyboard for use with my Powerbook. Sometimes I use my Powerbook for long periods of time and and after a while the Powerbook keyboard isn't that comfortable. Plus using the wireless keyboard prevents wear marks on the Powerbook. Anyone know of a case for the Apple Bluetooth Keyboard? I'll be carrying it in my backpack and I don't think it will survive very long without a case. I've been on Apple's site and haven't found one. Did a few Google searches but came up with nothing. Any recommendations?