One more issue has not to do with the iPhone itself, but with the services Apple has advertised as working with it.
I'm speaking of the free push IMAP email from Yahoo!, of course. Now, I've never used any kind of push email system before. I have no basis for comparison. But Yahoo's taking a hell of a long time to get a mail I sent to myself--and if you don't get mail immediately after it's sent, well, what's the point of push email at all?
Were I someone who needed ultra fast email, I'd go back to my POP account. As it is, I may do that anyway.
Does someone who has used push email before have any insight on this? This isn't a limitation of the IMAP system, is it?