Have you tried calling 1-800-APL-CARE? Not sure that there is still a MobileMe department, but it never hurts to call and ask. I believe there is/was MobileMe support for the iPhone; maybe they will be able to help.
I too am having issues. They do not have a phone support number, and their tier 2 support sucks.
I have spent 1.5 weeks wasted only to get an email tonight telling me it does not support push.
These guys at MM are beyond help IMO. This is apples weakest link without question. My MM mail has been having issues communicating with apples servers up and down for 2 weeks, and this chump comes back to me after waiting with an answer that does not even address my problem.
In other words, he never read my original, secondary, third, and forth detailed issue/complaint.
I too am pissed, and I am taking this up the ladder. I spend thousands upon thousands with this company, and I am not going to take this. For 150/year for a family account, gee can it work?
/rant. I will call apple tomorrow and start my complaint addressing my new 13" maxed out air that I just gave them 1800+ for... we'll see where it goes...