More reaction to Mitt's speech here and here. Some of my favorite quotes are:

Kathleen Parker--"He held up a mirror and, for the first time in a long while, Americans did not have to avert their gaze. They could see themselves reflected and be both proud and humbled by their country's unique beauty."

Pat Buchanan (whose sister, Bay, is LDS and was in the Reagan administration)--"To this writer, Romney is on unassailable grounds. Nor is he hurt by the fact that his wife and five children testify eloquently that he is a man of principles who lives by them."

Michael Medved--"But in Mitt's remarks today, he not only looked and sounded like a President – he actually looked and sounded like a great one. All Americans should feel encouraged and grateful."

Dallas Morning News Editorial--"In so doing, a passionate Mr. Romney delivered one of the clearest articulations of our civic religion by any presidential candidate in recent memory."

Michael Gerson--"Romney's speech, however, was an achievement. It had the boldness to argue with Kennedy on key issues and the intellectual seriousness to win some of those arguments."