5/5/2010 – Update:
The Second Internet Explorer Platform Preview is out here (via Tim Sneath) with more JS performance, HTML5 stuff and CSS 3 improvements, Do check it out : http://ie.microsoft.com/testdrive/
A nice read on HTML5 and Same Markup: Second IE9 Platform Preview Available for Developers
The developer Preview is available for download here
A sample Flying images demo –
IE9 Preview and Chrome showing the same demo, check at the FPS difference –
HTML5 applications are a lot richer and demanding, in terms of graphics and speed than Ajax applications. Microsoft is planning to deliver a lot more preview builds of IE 9 before it hits beta. In fact, the team is committing to delivering an update every eight weeks, and to interact with developers via the Microsoft Connect feedback loop.
IE9 will not be available on Windows XP as IE9’s GPU-powered graphics take advantage of new technologies available in Windows 7 and back-ported only to Windows Vista.
Via – [ZdNet]