Apple Push Notification service, tutorials and libs

Question

Hi,

I try to implement a push notification service in my iPhone app... Do you have any valuable bookmarks on this subject ? (like tutorials or libs for client or server side)

Here is what i found...

Server side libs :

• http://code.google.com/p/apns-php/ (PHP)
• http://code.google.com/p/easyapns/ (PHP)
• http://github.com/simonwhitaker/PyAPNs (Python)

Tutorials :

• How to build an Apple Push Notification provider server (tutorial) @ blog.boxedice.com
• APNS Client Development Certificate Available Now @ iphonesdkdev.blogspot.com
• IPhone Apple Push Notification Service (APNS) @ macoscoders.com
• Implementing Push Notification Video @ developer.apple.com
• Local and Push Notification Programming Guide @ developer.apple.com

Companies with push notification services :

• http://urbanairship.com/products/
• http://developer.xtify.com/
• http://www.monopush.com/