Here's a few more specifics:
- The newly announced keynote will be a talk from Andrei Zmievski (recently appointed Open Source Fellow at digg and will talk about PHP6
- The Hackathon has been officially announced in conjunction with the Unconference
- And, for those that thought they had missed out on the early-bird pricing for the event - listen up! They've extended the early-bird pricing out until February 28th!
You can get more information about the php|tek conference for 2009 (including registering to reserve your spot) on official conference website