I should probably have mentioned this sooner than 3 days before the conference, but I've been swamped with things as of recent.
I'll be giving a talk on the new cool things in PHP 5.3.0. I gave a similar version last year at PHP London, this was before we switched to using the ever popular backslash for the namespace separator. In preparation for the reaction I got at that session and PHPNW panel I created a special slide which will be revealed on the day.
Tickets are still available and includes lunch on the day, there is also an open bar courtesy of Sun / MySQL immediately after the last session. For those who are traveling down the night before there will be a pre-conference social at the bar in the Brook Green Hotel.