All I know about Joe Biden I've read in the past two days, and actually, this isn't about Joe Biden; it's about Barack Obama. And that's to say, I admire Obama for being willing to pick someone even after that person said he didn't think Obama was ready to lead.
Obama's no fool; he must know that McCain's campaign will use that against him. Heck, I know they'll use that against him. And maybe Obama is foolish for picking a running mate that will allow the McCain campaign to bring up the charge of Obama's inexperience again and again.
But on a personal level, what that choice says to me is that Obama doesn't need worshipers, and I can't help but think that's a good thing.