PubNub is a new real-time cloud-based subscribe/publish API, it’s basically a hosted version of APE but we require no servers, minimal setup and a cross-platform API including JS, PHP and C# – perfect!
Here we have a sample demo of sending and receiving SMS (text messages) in real-time using APE‘s libape_controller. We also utilize an SMS gateway called Esendex which is a UK based company – hence the name EsenAPE. When a message is sent to Esendex (e.g. you reply to the text you sent yourself) it will call a URL (RPC.php) we can then pass this onto APE for updating the users UI. The idea originated from a project I’ve just completed with work, Alert and Respond which basically does what this demo does but not in real time (polls every 30 seconds). It’s a good example of how to use the libape_controller – let me know what you think 
A very quick post in regards to Matijah’s comment on Using jquery With APE. We can easily modify the colorChanger application so we can change the background via PHP. This could be extremely helpful in pushing UI changes to users clients, something I struggle to implement using plain PHP and JavaScript.
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So today we’re going to give the ability of giving a channel a topic, much like IRC and in the process learn more about the internals of APE. This requires us to modify the libape-chat.c code and create some additions in the chat.js of the Chat Demo. We’re not going to end up with complete code but you’ll see how flexible APE is and how quickly we can extend it.
Following up on my previous post, we used a singleton “class” by using a function. I’ve recently come accross the DUI (Digg User Interface) which is a jQuery plugin and extends jQuery so we can use classes – much similiar to MooTools Class method.
APE (AJAX Push Engine) uses the MooTools library by default which is great, if you work with MooTools. What about us jQuery users? Well with APE it’s very easy to use your own preferred library and I’ll show you how.
APE (AJAX Push Engine) is basically a daemon which acts as a proxy between your client and the HTTPD. It allows thousands of users to exchange real time information through your existing web browser, no reloading and no plug-ins – a web developers dream.