Blackberry push notification tutorial

I have registered with RIM for the push notification evaluation. But i cant find good sources for implementing push notifications. There are some samples in the sdk but i couldnt find out a way to implement them. So, i am looking for a good tutorial where i could find step by step imple开发者_开发问答mentation of push notification services...

RIM's samples for the server side involve setting up a web application container (e.g. Tomcat), setting up a backend database, and then building their Spring-based application. This sample web app handles things like device registration, content subscription, etc. and features a portal to manage everything.

The bare minimum that is required, though, is to send a WAP Push message which is just an HTTP POST to their Push Service servers. Here is a thread from the BlackBerry Support Forums that describes how to use their low-level PAP API to construct this message. Pay attention in particular to the messages by the user mdicesare.

There's also another SO question that has some tips.