It appears that the US and the DPRK have come to an understanding over a North Korea-Syria connection and Uranium enrichment.
It involves the release of a document where the US makes the charges, and the DPRK acknowleges the US concerns.
Also, Iran has expressed a willingness to enter into talks over nuclear and other issues.
On the latter, the issue has always been more the US than Iran, because of the Bush admin’s insistence on it being a single issue negotiation, with Iranian capitulation being a necessary condition for even that.