This is mostly since I have a 17" MBP... But I was just thinking about this when I was using the whiteboard in the Windows Live Messenger (via Parallels) that it would be really 'cool' if the trackpad doubles as a rudimentary 'mini graphics tablet'. Obviously, you'll need a special pen (as with normal graphics tablets). It would be handy for the occasional signature, helping some guy at uni with their maths over msn. I'm sure this isn't an original thought, shoot me down if you must, but it would be very handy. How about the trackpad with some of that iPhone conductive screen on the it? It might work. While i'm on the subject of the trackpad. Does anyone wish they would do a 'middle click' with their trackpad? I'm sometimes triple tapping thinking that it'll bring up the app switcher. Thoughts?