The MobileMe FAQ
Apple's MobileMe got off to a very bad start—to say the least. It was plagued with so many problems and service interruptions that Apple gave subscribers several months of free service as a way of apology. Happily, most of these issues are now behind us. However, problems inevitably remain. Here I cover the common (and a few of the not-so-common) iPhone-related MobileMe problems.
For additional troubleshooting advice, check Apple's Support site, especially this article:http://support.apple.com/kb/TS1672.
I'm sure everything is set correctly, but MobileMe Push isn't working. What do I do?
From your iPhone (or iPod touch), try this checklist of fixes, arranged with the easiest one first, in order, until one works:
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