I did some googling and people have made very small bluetooth displays like this one.

Can someone point me in the right direction to start learning how to do something similar? Is there some kind of "bluetooth on a chip" that gets a person started? I imagine the "rendering the display information" is the tough part. Is an entire computer needed for this kind of thing?

It would be really cool if one could make a remote display and control so that the PDA would not be necessary. The project I linked to above suggests that this could be pretty small. Doing the same thing but adding 4 buttons and a knob is what I'm thinking.

FWIW,

Jim