Certainly even Daily Kos admits Romney's numbers have been moving up in recent weeks:
http://www.dailykos.com/story/2012/07/24/1113254/-Daily-Kos-SEIU-State-of-the-Nation-poll-Romney-moves-into-tie-with-ObamaHowever, I'm hesitant to say the Bain attacks aren't working; Obama's treading water in Ohio (at ~ +3), which seems to suggest they're at least stopping any decline there. Romney basically can't win without Ohio, so Obama is still winning. Still, the reasons for this trend are not going away anytime soon, and once Romney starts spending at greater than parity with Obama (soon) things are going to start looking a lot worse for the President than they are now. Obama is swimming upstream, against the current; it's only swept him back just a little at this point but he can't keep doing it forever.