Anatomy of a HTML5 Mobile App
Safari Reference Library
The Safari Reference Library provides detailed information for web developers on iPhone, iPod touch, Mac, and PC. These resources include guides and articles, API reference documents, sample code, release notes, and technical notes. Use these resources to learn about Safari's developer tools, visual effects, HTML and CSS support, JavaScript and DOM support, and other features and technologies. The library is organized by Topics and Resource Types
Let’s Take This Offline - Dive Into HTML 5
In depth HTML5 storage - excellent as usual
Video on the Web - Dive Into HTML5
A comprehensive guide on how to embed video written by Mark Pilgrim
Creating Ogg Theora Files on Mac OS X With ffmpeg2theora
The best easy way to create Ogg Theora files on Mac OS X isffmpeg2theora