So depending on a state, a big lead early isn't necessarily dispositive, unless we're talking smaller, less populated states where strong trends are harder to buck later on because of sheer population size.
Oh, and by the way, here is a somewhat useful election aggregator from The New York Times.
So far, my favorite part of the night has been seeing that Marco Rubio is at 50%, to Crist's 30% and Kendrick Meek's 20%. So satisfying to watch Crist slither off into well-deserved oblivion! Surely Meek deserved better from his party and its leaders, but that's a story for another day.