the name is actually Azure Active Rights Directory Management (AAD RM). I will get this fixed. AAD RM today ships as part of Office 365. You can get more details about this here: technet.microsoft.com/en-us/library/jj585016.aspx
The AD RMS SDK 2.1 RC released few days ago, is available at: https://connect.microsoft.com/site1170/Downloads/DownloadDetails.aspx?DownloadID=48166. (If you haven’t registered on Microsoft Connect, then: Go to connect.microsoft.com, sign in with your Microsoft Account > Directory> Search for Rights Management Services > Join)
You can also write your questions at http://connect.microsoft.com/site1170/feedback. The RMS team monitors these feedbacks daily and can answer your questions there.
Or, you can email directly at askIPTeam@microsoft.com