I don’t understand one thing about this latest (yet to be released) iPhone 2.2 upgrade. The iPhone was slated to have push notification services before the end of September. The last major release of the iPhone OS was pushed out on September 12. While this release generally stabilized the operating system, reduced lots of system lags and improved battery life – it was missing one major feature. There was no support for push notifications – a feature Apple had trumpeted in their keynote address announcing the iPhone 3G. The lack of push notifications is a major missing feature. It means that your iPhone’s many applications such as instant message clients must run in the foreground if you expect to receive timely notifications. So, while I’m excited to be able to rate apps as I delete them and see Google Street views – when am I going to have the Unified Push Notification Service that has been promised for iPhone 3G?