Yeah, chocolate chip (get it..chip..lol) was the first thing that came to my mind also.
It would be really weird if they tried for a Spam chip (then you could feel like you were eating a Spam sandwhich and chips at the same time...yuck!! Nothing against Spam...it's just better alone, imho.
I can't really think of anything much...I agree with Flames Of Yagami in thinking that they had already thought of practically every flavor already.
Hmmm, perhaps a strawberry chip or banana chip or a fish chip????? lol