Apple keeps revealing old patents of late – we had the iPod Nano 7G reveal just this morning. Now, in an apparently unplanned marketing move, it has revealed a new keyboard design. Haptic feedback has been used for years to bring tactility to touchscreens, but Apple plans to use air. The screen will blow or suck at your fingertips to create that physical button feel. Weird? Or magical? Either way, we'd love to see this hit the iPad 3.