Scott Brown is a northeastern Republican. Whether he believes in the "jobs" bill or not, he's going to have to be a more liberal voter in the Senate than conservatives like just to have a chance for re-election.
Calling him a turncoat or other nonsense is absurd. If you weren't prepared for some votes from him that would turn your stomach then you were being naive. Are "jobs" bills abhorrent to conservatives? Yes. In the grand scheme of things this bill is small potatoes. What's important is whether Brown will be there when the chips are down. So far, it's to early to say. I know this though: If we run him out of the part on a rail at the first vote we don't like, then the odds of him being there when we need him are small.