We've talked about how the transition to a plug-in free Web is happening today. Lots of Web browsing happens on devices that simply don’t support plug-ins. Web sites that use plug-ins need to understand what their customers experience when browsing plug-in free. In case you missed it, check out Rey Bango’s blog post where he lays out clear guidance for developers on building cross-browser plugin-free experiences and addressing issues like cross-browser CSS, media playback, and touch.
-- John Hrvatin, Program Manager Lead, Internet Explorer