Rush Rock Band DLC experiencing 'technical difficulties'

If your Tuesday morning ritual mirrors that of ours, where we sign onto Xbox Live to browse the XBLM's new Rock Band downloadable content, then you too were as shocked as us. Because, lo and behold, there is no new Rush Moving Pictures Rock Band album DLC on the XBLM this morning. Sad ... we know. Harmonix has informed us that due to some "technical difficulties", the promised Rush DLC did not make it onto the Marketplace as scheduled but that the "difficulties" are being ironed out. We wait patiently, on the edge of our seats, for the release of the original master of "Tom Sawyer" ... HURRY UP HARMONIX!