With the latest Yun update, there are new possibilities, Node JS + SerialPort = Awesomeness.
I want to try Johnny-Five library to control Yun using firmata.
I've uploaded standardFirmata example to my Yun board, and on the Node part I've choose the '/dev/ttyATH0' port.
Unfortunately something still is not working properly. Johnny Five gives me an timeout message:
1399526011001 Device or Firmware Error A timeout occurred while connecting to the Board.
Please check that you've properly flashed the board with the correct firmware.
Maybe the problem is with firmata part?