[nextparadigms]

Are you talking about the un-released version of WP7, Mango? Because as far as I know HTML5 support is missing from WP7 currently, with its IE7 mobile browser.

If you're going to compare the IE9 mobile browser, compare it with iOS 5.0 browser and Android 4.0 browser (also coming out this fall).

[Andrex]

Yeah, I was talking about Mango. I don't think Android 4.0 has been announced, but I will look into iOS 5. But if Mango hits before iOS 5, even if the iOS 5 browser fixes all the bugs and adds some HTML5 features, it will be hard to stack up to the desktop-class IE9.

This is an odd disparity between desktop and mobile because IE9 is definitely the worst HTML5-supporting desktop browser. But on mobile it's going to be top dog.