I am amazed that such a large company has the integrity to stand up and admit a mistake.
From Apple's letter to MobileMe users.
"Another snag we have run into is our use of the word “push” in describing everything under the MobileMe umbrella. While all email, contact or calendar changes on the iPhone and the web apps are immediately synced to and from the MobileMe “cloud,” changes made on a PC or Mac take up to 15 minutes to sync with the cloud and your other devices. So even though things are indeed instantly pushed to and from your iPhone and the web apps today, we are going to stop using the word “push” until it is near-instant on PCs and Macs, too."