iOS Web App Icons & Startup Images

Taylor Fausak has a nice guide for creating iOS-friendly app icons for your web apps that includes instructions for the retina iPad, which Apple’s docs have not yet been updated for.

Short story, you need icons in four sizes: 57x57, 72x72, 114x114 and 144x144. He also has a helpful tip for specifying the startup image specific to each device using CSS media queries.