I absolutely love this....Kimmel gets some folks on the street (including 4S users) to try what they are told is the new iPhone 5; they love the bigger screen, the lighter (and heavier) phone, and the faster speeds...except its just a plain old 4S:
First Look: iPhone 5 - YouTube
I imagine you can get folks to say similar stuff on any smartphone platform, but no matter what you think of iPhone/Android this is a good example of how technically literate the average Joe is.