The primary system may be crazy, but calling it "a
bastardization of the Founders' vision" is a little silly. The
Founders didn't even envision political parties. (Here's a
brief history of the nominating process, which I think is
correct even though all the usual caveats about Wikipedia
apply.)
As for Iowa, the Straw Poll became important because George H.W.
Bush won it in 1979 -- the first year it was held -- and went on to
win the caucuses. It's doubtful that he would have otherwise been
vice president. Since then it hasn't been all that reliable an
indicator. The Hucka-boomlet may have legs, but I wouldn't
necessarily count on it.