You have a right to explanations and apologies
With the HUGE amount of hype Apple brought to Mobile Me, they deserve in spades the same amount of bad press for a truly lousy transition. What a PR blunder. Okay, so you encounter problems, but for Pete's sake, say the magic words "I'm sorry" and offer some plausible explanation for the error. Everyone loves to root for the underdog, even if they are a tech company. Everyone understands "almost" and "trying", but to arrogantly assume all previous and new .mac / Mobile Me customers should just suck it up and wait, is complete indifference to actual needs and reality. Some people actually rely on this service for their day to day business. God bless them as they have had a very rough few days. For more casual users like myself, it's annoying, but not career or life threatening. But cut them slack? Why? How old are they? And I do mean they as the corporate entity. So yes, do not verbally abuse hapless IT folks trying to right the situation, but hell, YES, demand that Apple reimburse you for the aggravation and complete lack of respect. You, we all, deserve to be treated like valued customers, not annoying jerks. They made LOTS AND LOTS OF PROMISES. They failed to deliver. No apologies, no explanations. This is called arrogance by most.
Enough. The bush is beaten so to speak. You deserve more. All of you.