The text of Obama's speech is here. I've read it. On balance, it looks excellent.
UPDATE: I think that was the best delivered acceptance speech I've heard since at least Reagan. Reagan perhaps had a little more heart in his delivery; Obama's style is cooler. But then, in prepared remarks Obama comes across as smarter when he talks than Reagan did, though not necessarily deeper.
For both men, their only weaknesses in prepared remarks were that (like almost all politicians) they too often tend to mine platitudes, just different sets of them.