iPhone Push Notifications Here at Last
Apple is finally testing the long-delayed push notifications promised back at the very beginnings of the App Store. The notifications are what will allow third-party applications to offer updates to their home-screen icons and display status messages without the actual application continuing to run in the background, something forbidden by Apple.
The problem has been that all the data has to go through AppleÃ¢â‚¬â„¢s servers. Imagine Ã¢â‚¬â€ every single person that uses an instant messaging client, say, would have their updates piped through to Apple and then pushed to their iPhone. And thatÃ¢â‚¬â„¢s for every single message. If you remember the disastrous launch of AppleÃ¢â‚¬â„¢s web-centric Mobile Me service, youÃ¢â‚¬â„¢ll see the problem.
Read more: wired.com