Really? Poll after poll I've seen shows independents fairly evenly split. 0bama gains his edge due to the poll being weighted with Democrats. That's certainly the case with Rasmussen. I know, because I am a member and get to see the crosstabs.
Obama seems to have gained an edge amongst Independents.
Gallup shows a 4% Obama edge:
http://www.gallup.com/poll/108049/Candidate-Support-Political-Party-Ideology.aspx
Zogby:
http://www.reuters.com/article/politicsNews/idUSN3134134020081102
“He said the polling data over the weekend showed that both candidates appeared to be consolidating support among their core supporters — women and independents for Obama, older voters and conservatives for McCain.”
Pew:
http://people-press.org/reports/pdf/468.pdf
WSJ poll:
http://online.wsj.com/article/SB122567494708692025.html
ABC/WaPo:
http://abcnews.go.com/politics/PollTracker/fullpage?id=5611512
I am not sure about Rasmussen, as I am not a member of their premium service.
I think it is pretty clear that Obama wins with Independents at this point, as shown by poll after poll.