Project feasibility: motorcycle hud

Hi Peter, i've been looking at several options to achieve that, and i think that using a small projector would be the best option. I have a quite large windshield installed on my motorcycle, and projecting useful info on it would be the final idea. First i want everything working on the ITEAD display, and then i'll move on to the projector.
A single Arduino can handle all that data? RPM pulses are going to be quite fast, plus hall sensor's readings, and even more processing with the display(for now) protocol. If not, using multiple arduinos could be a workaround?
The desired effect is a "realtime" measure, or at least close to it, refreshing the data as fast as possible (1 second seems too slow).
Hello Kduin, i love that project, i've seen it but i don't like the idea of wiring myself (maybe bluetooth?), and blocking one of my eyes scares me a bit, but the idea of the retroview camera is awesome, maybe it could be done with an external video processor, to send it to a display(and maybe a projector later)?
I can specify more if needed, just name it.
Thanks a lot!