I'd be interrested for sure. While I've had some issues with the RAMBo, biggest being support as there are too few users willing to log in and help out with issues, the RAMBo is a nice design. It's unfortunate that it does not have an SD slot natively.
The locking clips for the motor and endstop wires are a great idea, but I've had issues with the X axis wire end. For some reason it does not make great contact and once in a while causes the X axis stepper to judder instead of move properly. If I jiggle the wires it gets past this.
Instruction on how to do anything with the board are not easily found. The name RAMBo alone offers issues with doing internet searches for help since this will obviously yield lots of hits for the movies.
The oerall design is very clean. The chips stay very cool on the board. The power connections are rugged and solid. I've replaced more than 7 pololus on sanguinos in the last 18 months. So far no loss of controller with the RAMBo.
Once the little issues and frustrations are a thing of the past these boards will be the best of breed.
Count me in for a few of them. Likely 5 - 10.
Mike