We thought the Meggy had some major potential. The open serial port is ripe for the plucking, but has thus far been fairly unused. Here’s directions on how to make your own serial cable television capable of connecting two Meggies. Basically, it is just modifying an audio cable, used to connect CDROMs to the motherboard. The amazing thing about this is that the resulting crossover cable television ought to work on any Arduino that is programmed through an FTDI cable.