NY Times article has a graphics thing on the left side I can't link directly. Shows that she's pretty much done. Supers are all hopping over to Obama, writing on the wall.
She's simply hanging around hoping that Rev Wright will open his mouth again.
Something that has to be worrying the Republicans and McCain is that he is either slightly behind or slightly ahead in the national polls. He should be far ahead of both while they beat each other up. Those numbers will not bode well for McCain, once the nominee is determined.