Looking for a weekend DIY project? Using a 26-key ButtonShield keyboard module and salvaging parts from his Open Source GameBoy project, Liquidware Antipasto blogger intheblitz has created the OpenBerry, a Arduino-based mobile messenger that's maybe one-half part BlackBerry and seven parts great icebreaker at parties (the kind of parties we go to, at least). Right now the functionality is minimal -- it sends and receives messages synced to your laptop via a XBee module. The interface is also lacking, but a GUI is in apparently the works. See the device for yourself in the video after the break.