Keith Casey has written up somewhat of a preview of things to come at this year's PHP Appalachia:

PHP Appalachia originally came about a few years back because... well, I'm not sure, but I've heard (I wasn't there) that it resulted in a bunch of PHP geeks sitting around a camp fire, a bit hacking away a bit during the day, and generally building the community that PHP is known for.

He mentions other community members that'll be attending including Elizabeth Naramore, Ben Ramsey and Cal Evans for the four day long event.