We expect even more rapid innovation in the web media platform in the coming year and are focusing our investments in those technologies that are developed and licensed based on open web principles. To that end, we are changing Chrome’s HTML5 <video> support to make it consistent with the codecs already supported by the open Chromium project. Specifically, we are supporting the WebM (VP8) and Theora video codecs, and will consider adding support for other high-quality open codecs in the future. Though H.264 plays an important role in video, as our goal is to enable open innovation, support for the codec will be removed and our resources directed towards completely open codec technologies. - Google's Chrome is will be joining Firefox in no longer licensing the MPEG-LA H.264 video codec favoured by Apple and Microsoft for use in the HTML5 <video> tag (previously). Not everyone is seeing this as a good thing.
Internet Explorer 9 will support the CANVAS tag, making support for the tag ubiquitous across major browsers.
The <video tag>, as defined by the HTML5 spec, is an element "used for playing videos or movies". Which codec those videos or movies are in is currently undefined, with the two contenders being the free open source Ogg Theora and the proprietary H.264. With the unveiling of Internet Explorer 9 both Microsoft and Apple are supporting H.264 in their browsers, and comparisons of the standards seem to bear out H.264 as the better of the two. However Mozilla have taken a stance against incorporating H264 into Firefox on the grounds that it is patented and has to be licensed. Arguments are now being made for and against Mozilla sticking to its ideals. John Gruber of Daring Fireball points out that Firefox already supports proprietary formats such as GIF. Um, perhaps not the best example.