Griffin has tackled the challenge of holding an iPad upright for extended periods of time with AirStrap ($50), a nicely-designed black rubber and neoprene case that grips the front bezel, sides, and back of the iPad while adding a neoprene hand strap for added grip. We like AirStrap because the case works well independent of the strap feature, covering buttons while exposing the speakers, microphone and ports, leaving only the screen to be separately…
