php|architect has officially announced their next conference happening in Atlanta in November - php|works 08:

With over 30 talks and 5 tutorials, php|works is a great opportunity to learn from the best experts in PHP world-and to meet and network with fellow PHP enthusiasts from every walk of life.

There's a special sister conference going on at the same time for those focused on the Python language - PyWorks. The events will be happening November 12th through the 14th with the Call for Papers starting July 25th. You can get more information (like location, travel info, etc) as the full sites are launched at phpworks.mtacon.com and pyworks.mtacon.com.