I saw most of the speech; in fact, it is continuing as I write this. I'm also spending this time browsing my Rudolph Guiliani "Countdown to Victory" 16-Month 2007-2009 calendar, which I bought for 60 pennies on clearance at Borders earlier this year.
In a post by Andrew Sullivan on the speech, titled "One Very Off Moment," he writes:
The one moment that stays with me tonight, oddly enough, was not Palin's speech. It was a line from Giuliani, a New York mayor with a young second third wife and gay friends, mocking a "cosmopolitan" who was brought up by a single mother. It was that Barack Obama's rise could "only happen in America." And it was designed to mock him, the first African-American candidate for the presidency of the United States.
I won't forget that.