Everything you always wanted to know about mobile web, but were afraid to ask (PDF - Paul Fling's SXSW presentation)

Admittedly it's not quite the same without, ya know, the audio. But Paul knows his stuff. He also wrote the new Web Developers Best Practices Guide for dotMobi domains: http://www.blueflavor.com/blog/mobile/dotmobi_mobile_web_developers_guide.php