I am the founder and lead developer of JFusion and I would love to join the show to talk about how easily phpBB3 integrates with Joomla. JFusion provides a visual full integration between Joomla/phpBB3, usersync, automatic management of block/activation status between softwares, activity module, avatar displayed in the Joomla login module, user conflict management for people who want to bridge two exisiting softwares, integrate multiple phpBB3 boards into Joomla, single package installs, installation wizard and single click upgrades (just to name a few features). It is a revolutionary free GPL product that can integrate many different softwares into Joomla.
We have a large development team with 12 different developers contributing over the last year and going towards a stable version very fast with 60.000+ downloads of jfusion.
In your latest podcast you mentioned how long it would take to write a new bridge and the answer was that it would take a long time, as it can be very complicated. However with JFusion we have a plugin system where you can easily write your own JFusion plugin simply by writing a couple of SQL statements. The JFusion framework will then do the rest and give you all the features mentioned above after adding some very simple code in your new JFusion plugin. You can write a fully functional bridge in a couple of hours with JFusion. It is really a revolutionary product, even though I am slightly biased.
In addition we are testing out a search plugin that adds a phpBB3 search function to joomla and a discussion bot that links Joomla articles with phpbb3 topics (and creates them automatically for new Joomla articles). There are a lot of exciting things going at the moment that the phpBB3 community would be interested in.