sky news:
http://uk.news.yahoo.com/5/20110502/twl-can-us-offer-final-proof-of-osama-s-3fd0ae9.html
SKYNEWS: Can US Offer Final Proof Of Osama’s Death?
By BEN FELLER and MATT APUZZO Associated Press
May 2, 2011 (AP)
Two Obama administration officials say DNA evidence has proven that Osama bin Laden is dead, with 99.9 percent confidence.
The officials did not immediately say where or how the testing was done but the test explains why President Barack Obama was confident to announce the death to the world Sunday night.
http://abcnews.go.com/US/wireStory?id=13509518
So..still conflicting info on WHEN the DNA test was done and WHEN they got the results.