Especially of interest are our Thursday keynotes on "PHP 6: The Future" by Andrei Zmievski, and "PHP 4 is dead! Migrate your code" by Chris Shiflett. We've also added a tutorial session on Flex and PHP by Mike Potter, of Adobe, for those who opt to take part in the tutorial day.
For more information on the conference and to check out the rest of the schedule, head on over to the official conference website and check it out. You can also register today to reserve your spot at this great three day conference (one day packed with tutorials and two full of talks from great speakers on great topics).