In a discussion over at Leiter that never really took off, it was pointed out that this article at Inside Higher Ed suggests that the job market in political science seems to be rebounding a little, and wondered whether that's good news for philosophy.
I think it is wisest to maintain an "I'll believe it when I see it" approach to this sort of thing. It seems to me that we've had moderately good news about the economy over the past several years (or, at least, less bad economic news) that has failed to materialize as substantial gains in tenure-track philosophy job market.
Another thing that the political science data highlights is that it would be nice if the APA would keep detailed job-market statistics. It would be nice to know what's happening in the job market from year to year. As it is, you have to count entries in the JFP and on the Leiter jobs thread.