The iPhone 3.0 update is almost here now. One of the features that we and many others have been looking forward to the most is the new push notification service from Apple. We are also curious about how reliable push notifications will be.
Why do we wonder about reliability? Because push notifications are sent from third-party servers to Apple’s servers, and then on to your iPhone.
In short: Apple becomes a single point of failure since it acts as a go-between for all push notifications.