my 4 reliable apple insider sources all confirm that mobileme will be down until 8am EST tomorrow morning.. Today was basically just a test to make sure everything worked and it passed - only 10% of the servers went online today just to make sure everything was working properly which explains the slow service while us apple losers where all attacking it at once..
Thats a pretty cheap way to "test". Shutting down mac.com (webmail) is a major pain for me because I am on a Windows machine tonight..