I'm going to try and start using the Blue SMiRF for the comms channel, as I have had problems with USB comms and the fact that the USB cable dangles across an access way .

Just wondering if anyone else here have tried using this device?

I modified the motherboard, by using a wire from the 5VSB on the ICSP to the VCC pin on the header connector.

I alo made up a cable as the pinout of the BlueSMiRF is a little different to the Arduino.

Once it was all hooked up, it worked perfectly.

Definitely a mode of communication for anyone to consider for distances further than 2m.

I have not tested the comms yet with a steppers attached.