I want one of these: http://www.designboom.com/technology...d-gps-goggles/
But I want it with a bluetooth hookup so it can talk to my OBDII dongle in my bike.
How would you go about building such a thing? The biggest kicker, as far as I can see, is the display; I'm having a hard time finding an off the shelf part I could use for the display. I like the idea of having a raspberry pi in my pocket with a wire going up to the HUD, or something like that, but I don't know how I'd get started.
So, any ideas?