CNN's reporting that Bayh has said tonight that he's out (and so has Taker's brother). So unless he's lying, either the bumper stickers are premature or the story is wrong.
I thought about going to Springfield tomorrow, but that place will be cray-zee. The wife has a college friend who lives in an apartment complex inside the block to the south of the Old Capitol and who parks in the garage underneath where Obama will be speaking; the opportunity to get in there and get a decent spot would be good, but neither of us are really Obama supporters. It still would be neat to see the next President, though.
This isn't a totally surprising move, as Specter would likely have lost the Republican primary to Pat Toomey. There was some speculation that he might go independent, but becoming fully Democrat wasn't really suspected.