According to MacRumors, Apple has seeded iPhone 2.2 Beta 1 to developers. The build is being seeded for "compatibility testing" and there is no mention of new features or changes in this build. A new beta build of the iPhone SDK (build 9M2611) has been seeded alongside the OS X iPhone beta. It is possible that Apple is including the highly anticipated push notification service which will allow developers to send out notifications similar to the way SMS notifications appear now.
