Stefan Mischook has pointed out a webinar a fellow PHPer, Jon Lebensold, is going to be giving tomorrow (Nov 18th) about combining Google Wave and the Zend Framework:
Jon Lebensold, author of the popular PHP Shopping Cart and founder of Zendcasts.com will be writing a Google Wave Gadget in Boston at Intuit's East coast office. Intuit is setting up a live webinar which you can attend by registering on the Zendcasts website.
The webinar will be happening Wednesday, November 18th at noon eastern time (GMT -5:00) but you'll need to register to reserve your spot! The presentation will last about 45 minutes and in it Jon will built a simple messaging system.