I presented a talk titled "Introduction to Microsoft SQL Server Data Services" (DAT 251).  You can view the session Introduction to Microsoft SQL Server Data Services in its entirety.  I got the chance to share some details we have not had the chance to share yet.  Roger Jenninngs posted a link as well here.  He also included a short wish list.  I have taken note and will let all of you know if and when we can post the code for the command line tool and the SSDS Management Studio demos that I showed during this presentation.