McCain’s Intrade has moved up to 52.3. Meanwhile, it looks like the battleground states are tightening. From RCP:

Obama McCain
Michigan 47.2 45.2 Obama +2.0
Ohio 46.0 47.8 McCain +1.8
Pennsylvania 47.3 45.0 Obama +2.3
Virginia 46.7 49.3 McCain +2.6
Colorado 48.3 46.0 Obama +2.3