Creating XML Documents in iOS SDK

Well we need to create XML Documents within an iPhone app.

What we found is a wonderful project and the download on gethub.
http://arashpayan.com/blog/index.php/2009/01/14/apxml-nsxmldocument-subs...

There is also a way of doing this with the plist.
http://iphoneincubator.com/blog/tag/nspropertylistserialization