The latest from Quinnipiac polling this morning:

American voters approve 52 – 40 percent of the job President Barack Obama is doing, his highest score in almost two years and up from a 46 – 48 percent approval among voters surveyed before the president announced the death of Osama bin Laden, according to a Quinnipiac University poll released today.
This is President Obama’s highest job approval since a 57 – 33 percent score in a July 2, 2009, survey by the independent Quinnipiac University. Men shift from a negative 39 – 54 percent before the bin Laden announcement to a positive 51 – 42 percent today. Women approve 53 – 39 percent today, compared to 52 – 43 percent as of Sunday.
Voter approval of Obama’s handling of foreign issues also is up this week. But Obama’s 20-point negative score for handling the economy is unchanged and voter attitudes on whether he deserves reelection are only slightly improved.

It does not, so far, appear to have had a big impact on Obama’s 2012 chances:

Voters surveyed after the bin Laden announcement say 46 – 42 percent that the president deserves to be reelected, compared to a negative 45 – 48 percent before bin Laden.
“The killing of Osama bin Laden has helped President Barack Obama’s popularity but not massively,” said Peter A. Brown, assistant director of the Quinnipiac University Polling Institute. “Voters have upped their opinion of the president’s handling of national security matters.”
“But they have not changed their minds about his stewardship of the economy. The number of people opposed to his reelection has dropped, although they seem to have moved to ‘undecided,’ rather than to the pro-Obama column,” Brown added. “The good news for the president is that his largest improvement is among two key groups, men and independent voters.”