iOS, Android, phonegap Push Notification

Good Reference:

iOS APNS 訊息推播 - Apple Push Notification Service 介紹
http://blog.toright.com/posts/2806/ios-apns-%E8%A8%8A%E6%81%AF%E6%8E%A8%E6%92%A5-apple-push-notification-service-%E4%BB%8B%E7%B4%B9.html

如何透過 PHP 發送 Apple Notification Push
http://blog.toright.com/posts/2846/%E5%A6%82%E4%BD%95%E9%80%8F%E9%81%8E-php-%E7%99%BC%E9%80%81-apple-notification-push.html


Android Push Notification推播通知訊息給Android客戶端
http://magiclen.org/android-push-notification/

Android GCM (Google Cloud Messaging)：Server Side
http://blog.kenyang.net/2013/07/android-gcm-google-cloud.html

Android GCM (Google Cloud Messaging)：Android Client Side
http://blog.kenyang.net/2013/07/android-gcm-google-cloud_1.html