IPhone Apple Push Notification Service (APNS)

http://www.slideshare.net/subdigital/effective-ios-network-programming-techniques

Figure 3-1  A push notification from a provider to a client application


http://blog.boxedice.com/2009/07/10/how-to-build-an-apple-push-notification-provider-server-tutorial/


About PUSH
http://mobile.tutsplus.com/tutorials/iphone/iphone-sdk_apns/

Starter on Stackflow
http://stackoverflow.com/questions/1444355/iphone-push-notification-unable-to-connect-to-the-ssl-server

Provider Communication with Apple Push Notification Service

http://developer.apple.com/library/ios/#DOCUMENTATION/NetworkingInternet/Conceptual/RemoteNotificationsPG/CommunicatingWIthAPS/CommunicatingWIthAPS.html

IPhone Apple Push Notification Service (APNS)

http://www.macoscoders.com/2009/05/17/iphone-apple-push-notification-service-apns/

Note for self and note for next post.
If there's code signing error, saying it doesn't have com.xxx.xxx's provisioning profile.
Make sure, in xcode > resources > info.plist, edit the field bundle identifier to com.xxx.xxx