Zend has officially announced some additional keynote speakers for the upcoming Zend/PHP Conference and Expo in San Jose:

Wanted to give you a heads up that today Zend, the PHP company, announced additional keynotes for this year's PHP Conference and Expo. The newly announced keynote speakers will join confirmed keynote speakers Chris Anderson, author of "The Long Tail" and editor-in-chief of Wired magazine, Robert "r0ml" Lefkowitz, software designer and open source strategist, as well as Matthew Rechs, CTO of Schematic.

These new speakers are:

• David Berlind, Mashup Camp organizer and executive editor at ZDNet, will discuss the impact of "The Mashup Economy" and what it means for developers, corporations and consumers.
• Anant Jhingran, Distinguished Engineer, VP and CTO, Information Management of the IBM Software Group will present along with..
• ...Mike Smith, Distinguished Engineer, System i Software Chief Architect of the IBM Systems and Technology Group

There's still time to register for this great conference - you can get all the details from the main confernece site and signup today!