I just finished giving my talk on High Performance APC at OSCON.  I was lucky enough to have Graham Kelly, currently the primary contributor to the PHP Optimizer project, speak with me about the optimizer and the work he has going on there.  You can view the slides online via prezi.com, or you can download the zip file (~11MB) to view offline on your Windows or Mac OS.  Enjoy, please contact Graham or myself if you have any questions or suggestions!  Also, thanks to those of you who where present and participated.

http://prezi.com/135715/

OSCON09_HighPerformanceAPC.zip