One interesting tidbit: will the negative turn of the campaign convince these undecided voters to just stay home? Most of these undecideds probably dislike both candidates. More are in the T than in Philly or Pittsburgh. And more are conservative. If they stay home and Obama gets high turnout in Philly, he could win.

http://www.fivethirtyeight.com/2008/04/i ts-turnout-stupid.html

That said, I think she wins by 7. It'll be 53-46-1 and she picks up 12 delegates, 85-73.