.Mac is wrenched beyond belief right now. More specifically, .Mac mail.
Which means iPhone users with .Mac accounts are out in the cold. The discussion board at Apple.com is all lit up about it. Seems there have been intermittent problems since May 20.
The dashboard says 100% will experience latency with IMAP and we should use Webmail. Well, to the fine people manning THAT dashboard… Bad advice. That’s borked too.
[EDIT: Well at least now the dashboard reflects things are REALLY borked. I'd like to recommend people who are experiencing problems and find it as unacceptable as I do... to use this form to register your feedback.]