We felt that the other handful of PHP Meetup groups in the area cater to those just starting out more often than not. The engineers who are serious about building professional, enterprise-level applications don't really have a group where they can consistently expect presentations on those topics.
The focus of the group is less on the basic "hows" and "whys" of PHP and more on things like performance/scaling, optimization, testing and application architecture. If you're interested in joining the group, check out < href="http://www.meetup.com/pro-php/">their Meetup page. There's no word (as of the time of this post) on when their first meeting will be, but it sounds like an interesting group.