All polls of likely voters*:
Quinnipiac 4/9-13. MoE 2.1% (4/3-6 results)
Clinton 50 (50)
Obama 44 (44)
SurveyUSA 4/12-14. MoE 3.9% (4/5-7 results)
Clinton 54 (56)
Obama 40 (38)
Rasmussen 4/14. MoE 4.0% (4/7 results)
Clinton 50 (48)
Obama 41 (43)
Susquehanna(pdf) 4/6-10. MoE 4.4% (3/5-10 results)
Clinton 40 (45)
Obama 37 (31)
Of the three polls conducted after the flap about Obama's comments about the rational voting behavior of people in economically neglected communities, there's almost no change. One poll has a 4 point swing to Obama, another a 4 point swing to Clinton (both within the MoE), and the third has results identical to the previous survey.
It's possible that Clinton hammering Obama with a concerted ad campaign over his remarks about economically depressed small towns will hurt him. But it's also possible all that hammering with just give Clinton a swollen thumb.
The polls were stabilizing last week, and now there's no discernible movement. The race has tightened dramatically since a month ago, when most polls showed Clinton with a 10-20 point lead. But now things appear locked in. The debate could shake something loose, as might some last minute development, the way the NAFTA thing did against Obama in Ohio. But short of some big development, this race looks like it will come down to GOTV. Clinton has the clear advantage going in, and should be considered the favorite, but Obama's close enough that it's not inconceivable that he could pull off a major upset.
*ARG is excluded from this list because I don't trust them. I excluded them from my last polling roundup when they had the race tied, so it's not a matter of cherry picking, I just don't trust them.