Their collaborative full-length album is called "Back For More" and will be available to the world on July 12, and is definitely on my watch-list. Jazzy Jeff is one of the producers who handles jazzy hip-hop and straight soul music with equal grace and the songs I've heard so far sounds promising.
The project has been in the works for quite a while now as I remember hearing about it sometime last year when also a 5-track EP called "This Way" was released on the net. Since then I kinda forgot about the whole thing, until I saw the new video, "Notorious", posted on OnSmash today. I can't find the video on YouTube right now so I'll have to link to OnSmash below and I'm also adding the "This Way" EP (which also features 7 additional snippets besides the 5 full songs) via Jazzy Jeff's official site.