TIf I could put WebOS on my iPhone I'd be one happy smartphone user.
Actually, aside from the Pre having a little bit slower graphics chip than the 3GS, they are pretty much the same hardware wise. That difference in speed you are perceiving is OS X. Same thing with my 2.4ghz C2D MBP and my 2.4ghz C2D HP at work. Same amount of ram, the HP has comparable if not faster graphics being a desktop system. Yet my MBP is faster at everything.
Also if your Pre was on iPhone hardware it wouldn't run unless they made a touchscreen keyboard in the software. It would look better though.
As for the results of this survey: is it too soon to declare victory? Whatever happened to the Instinct? Or any other "iPhone killer?"