Why Is Apple iPhone Push Notification Still Missing?

[wraggster]

The latest iPhone 2.2 operating system fixes many things, but something is still missing: Push notification services. Once again, Apple has missed the opportunity to enable push notification in a new update, which is specially bad after they failed to meet their self-imposed September deadline. That makes it almost two months late now. So what's the problem? Is the cause just a technical glitch or maybe there are other hidden, last-minute reasons behind it?

http://gizmodo.com/5098887/why-is-apple-iphone-push-notification-still-missing