HTML5 is a new platform for web development that includes features like offline application caching, 2D drawing with Canvas, local storage, web workers, notifications, and web sockets. Python can be used in the HTML5/RIA space through frameworks like Pyjamas that compile Python to JavaScript. However, for client-side development JavaScript will likely continue growing in popularity over Python due to its seamless integration and the lack of compelling reasons to replace JavaScript with Python in browsers.
Steve Jobs – we support two platforms at Apple – the first is HTML5, a fully open, uncontrolled platform. We fully support HTML5, love the technology in it and Apple's browsers are the lead in terms of HTML5 Support. June 7 th 2010
Introduce pyjamas at this point
Right now examples include gmail,, google docs or yahoo email on the iphone. scribd.com