Chat Option for iphone

I have to implement chatting functionality for iphone (log开发者_如何转开发in basis).I dont have any clear cut idea most of the sample code will support macos supported framework

You can use XMPP / Jabber, IRC, SILC protocol to get chat functionality for your application.

If you're going to use XMPP as the previous answer suggested i would recommend trying out http://code.google.com/p/xmppframework/