The absolute best session I attended at OSCON 2006 was the "PHP Lightening Talks". Some of the presentations were interesting, others were hilarious. Theo Schlossnagle's Why PHP Sucks was both. Theo is a facilitating to sit and listen to, as you'll soon see when I post my interview with him. He's also quite funny when he wants to be. His presentation was interesting. It was part tongue-in-cheek and part dead serious but Theo left it to you to decide which was which.

He also points out another post about the talk from Chris Shiflett where a rather large discussion started about the contents of Theo's slides. And Cal hits the nail on the head:

The talk was good, don't get me wrong, but the conversation it inspired is much more interesting.