Edwards and Dean getting cozy?

From CNN:

Dean and Edwards play nice

Finally today, we'd like to close by pointing out how nicely Dean and John Edwards are playing these days. We're not sure exactly why, or at least we can't confirm it, but we're not the only ones who've noticed.

First there was Dean's heartfelt bouquet to Edwards during the Des Moines debate on Sunday, apologizing again for attacking the senator last year.

Then came Edwards's plea Monday for reporters to stop badgering Dean with questions about his sealed gubernatorial records. Yesterday, asked to comment on other Democrats' criticisms of Dean, Edwards had this to say about the man he has to beat if he wants to be president:

"You know this is part of the back and fourth between campaigns. I'll let Gov. Dean defend what he did and didn't do in the state of Vermont. What I believe is we are going to bring change to this country. We don't need somebody who has been through politics for 20 years or been in Washington for decades. Which is what I offer."

Any thoughts as to what is going on here if anything? Vice Presidendial conversations? Just Edwards continued desire to tone down the rhetoric of the debate?