Yup, and in addition to the HTML5 offline feature (which work in Android and in newer desktop browsers too), it also uses some nice iPhone-specific extensions l

Yup, and in addition to the HTML5 offline feature (which work in Android and in newer desktop browsers too), it also uses some nice iPhone-specific extensions like "apple-touch-icon" and "apple-mobile-web-app-capable" to display fullscreen in the iPhone OS when saved to the home screen, so it looks and acts more like a native app: http://developer.apple.com/safari/library/codinghowtos/Mobile/UserExperience/index.html#GENERAL-CREATE_A_HOME_SCREEN_ICON_FOR_MY_WEBSITE_OR_WEB_APPLICATION http://developer.apple.com/safari/library/codinghowtos/Mobil...