Push worked fine all day yesterday, all push-able items, though I had one spell where calendar items took about an hour to get pushed into proper sync. But it's being flakey today. Remember, it's Saturday in most of Apple's top iPhone service areas, so big shopping day, lots of people buying new 3G iPhones, activating them, buying MobileMe or signing up for a trial.
I'm getting everything on my iPhone, using mail as a test case, from almost immediate push, to a notable delay, to I have to wake the iPhone, to I have to go into the iPhone Mail app. (via EDGE or WiFi, doesn't matter)
Also, the MobileMe sys prefs panel is reporting errors returned from server on the main account status tab and unavailability of iDisk on the iDisk tab.
Just flaky, but yes it's already working, though not too well at the moment. I'm going to quit testing it because that's getting boring.
I signed up for a trial account, set up the email on my iPhone, and tested it out. I can send email but the push doesn't appear to work. The message only shows up when I browse to my email account and it pulls the message down. Anyone else seeing this?