Well I've been working with some other Megasquirt guys on developing a LCD dash/gauge cluster. The LCD screen will be purchased, but the controller needs to be designed and built. My role in all of this was to turn this drawing:
into something practical.
And here is the result.
There'* still a lot of room at the top of the PCB. There are still a couple of inputs on the processor to fill in with .... something. Maybe a speed sensor circuit for a speedometer or something. Also, this board runs on 5V which is currently set up to be supplied by the Megasquirt. I think it would be a good idea for it to have it'* own power supply circuit.