Alright let's see-- 1. He won by 50% and Obama won by 53%. 2. Carter simply was able to cobble up the last of the New Deal coalition for one final swoop and hurrah, Obama cobbled up an entirely new coalition. He won Hispanics by 30 points. He won 20-somethings by 30 points. This is big. The only reason McCain did so well was because he scored so high in the Sothern Highlands and Lower Mississippi.
Reagan only won his first victory by 9 points. Obama won by 6 points. ...and Richard Nixon won by like 1 or 2 points, yet that was the beginning of the Republican Era of the late 20th century that may have just ended.
I don't see a new coalition here. Obama was able to pull all of the Kerry states and add a few Bush states. The credit crisis and subsequent market losses drove the national electorate away from the incumbent party, and the light-Bush states went to Obama. Carter, on the other hand, was able to win something like twenty Nixon states in '76.