Obama campaign spokesman Bill Burton has two statements out proclaiming that his Georgia win is an early harbinger of the broad coalition he's been able to build.

There's this:

Obama's victory in Georgia was achieved through a broad coalition of voters. He not only increased his support among African American voters since South Carolina (78% in South Carolina to 86% in Georgia), but he dramatically improved his standing among white voters (from 24% in South Carolina to 43% in Georgia.)

And:

The win in Georgia tonight is Barack's strongest showing among female voters of any contest so far. In raw percentages, his highest showing so far has been 54%, in South Carolina. Adjusted for a two-way race, he would have gotten 64%. Tonight in Georgia, Barack got 64% of the vote among women, which made up 63% of the electorate.