In honor of Samuel Morse's birthday: my iPhone app "Buzzbuka" is now free in the App Store. It allows two iPhones to communicate via Morse Code by pressing the side volume buttons to make the other iPhone vibrate. (Both iPhones can stay in their respective pockets for "covert messaging".) Buzzbuka blurb: ========================= - Trick your friends - Have fun in boring classes or meetings - Do a perfect magic trick - Coordinate with your wingman in a bar - Use your imagination * Communicate with a friend by simply pressing the volume buttons on the side of one iPhone to make the other iPhone vibrate * Both iPhones seem "off" and can stay in their respective pockets. * Come up with your own simple code (single vibration, double vibration) or use Morse Code. * Works over Wifi/3G/Edge Website: http://buzzbuka.dsemeas.com Please let me know what you think!