Like it or not, she has a lot of supporters - it's not like she hasn't been doing well in the primary elections. The thing about her is that she has a ton of enemies too.

Obama really needs someone who can help him in swing states like, Ohio, Penn plus Ny/Nj too. So senator or gov from one of these states really helps him. He also needs to pull Hispanic voters so Richardson from New Mex seems to be a good choice too. I'd also argue he needs to attract more moderate Mccain supporters who may vote primarily because how they see the war being handled. So, Colin Powell would be a great choice here, the General also would bring other Reps. along with him. The downside here is I'm not sure if America is ready for two men of color in the white house (in all honesty I'm not sure the U.S.A. is ready for one).

Anyway, considering Obama's 'needs' for a VP, I don't see how Edwards fits in. He did not do that great in the primary's (Hillary kicked his but), his state isn't one of the most significant needs (plus Obama has a solid chance of taking it anyway). I like Edwards, but besides having marginal experience, being white (which matters), and having an average number of supporters when compared to other common names - I'm not sure he makes any senses to add to the ticket. Cabinet member maybe...