Zencoder
Zencoder is the creator of an open-source HTML5 video player, Video.js, built with Javascript, HTML, and CSS. Video.js plays video via native playback in all HTML5 browsers and devices, or through Adobe Flash when HTML5 playback is not available.
Upload components
iOS 5 has a sufficiently high level of HTML5 support; however, its level of support remains lower than for desktop browsers.