Same here since Friday with all my MAS apps. I've had similar issues in the past. Filing Radar helps. But in the past the Radar guys typically have me file a DTS incident. So I went ahead and did that earlier today.

Spelga, are you still having problems? I'm still "down" here (been over 48 hours now). I've had to file a Dev Support sent me to DTS, and DTS had me file a Radar report. So Apple is now on the case:)