Man that would be cool -- a simple animated video showing how the bitcoin works, and an example of use.
I really believe that most people could "get it" with a simple explanation of the core principles.

I pledge BTC 100 to the first animated explanation that is accurate and, well, explanatory.

(It sure would be nice if there was a tangible mechanism for pledging.  Even if bytemaster or anyone trusted/reputable would designate a receiving account for pledges, that would be good enough to send the coin out for holding.  This isn't exactly high stakes.)