I would like to send push notifications to iOS-based devices, but I don't want to write my own app. From what I've gathered so far, to send a push notification using the Apple Push Notification Service I need to use the SSL certificates that were used to sign an application.
Basically, what I'm looking for is the iOS equivalent of Notify My Android, an app that you install on your Android device that has a web service with a simple HTTP API for sending notifications.