If you have not yet read the phpBB Wiki Announcement or have not followed the discussion topic. I would encourage you to do so and take a look at the new development wiki:
http://wiki.phpbb.com
What is a Wiki and what can I do with it?
A Wiki is a type of website that allows the users and visitors to add, remove, and edit the available content. — Anyone who is interested in working with the phpBB Codebase, from website administrators who want to integrate phpBB into their site, or create a quick-script, to bridge or application developers to bridge phpBB with their application, to MOD Authors. The wiki is for those who want to learn more about the phpBB Codebase or simply have a question about how to do something or how something works within phpBB.
The wiki is also a great way to learn about how to begin programming in PHP/phpBB and developing a MOD.
