maybe sometime in the future.
When will this "future" come? Four years passed since you say it.
I think you should put this integration on your recent Todo list: phpMyFAQ is good, but it can't be a whole website. But Joomla is becoming stronger and stronger, if you rewrite or fork phpMyFAQ as a Joomla component, it will be welcomed by more and more Joomla users across the world.
Some of my friends are now seeking for such an integration, because they want to build their website with Joomla CMS, but offer FAQ service with phpmyfaq.
So, again, I suggest you consider to do this integration soon.