Just got an email from them saying people may need to modify their HTML if they want their pages to display correctly with IE8. Good luck getting people to comply with that one.
On August 27, 2008, Microsoft released Windows Internet Explorer 8 Beta 2 in English, German, Simplified Chinese, and Japanese. We will release Beta 2 in an additional 21 languages* within a month. Because you’re actively engaged in developing and maintaining websites, Microsoft wants to make you aware of a display issue related to Internet Explorer 8. Upon initial release, browsing in default Internet Explorer 8 Standards mode may cause content written for previous versions of Internet Explorer to display differently than intended. To enable existing content to display as expected, Microsoft is providing a compatibility tag that you can add to sites that might be affected. This tag instructs Internet Explorer 8 to display site content as if it were in Internet Explorer 7. This option helps ensure that existing content will continue to display seamlessly in Internet Explorer 8 without requiring any additional code changes.
On August 27, 2008, Microsoft released Windows Internet Explorer 8 Beta 2 in English, German, Simplified Chinese, and Japanese. We will release Beta 2 in an additional 21 languages* within a month. Because you’re actively engaged in developing and maintaining websites, Microsoft wants to make you aware of a display issue related to Internet Explorer 8. Upon initial release, browsing in default Internet Explorer 8 Standards mode may cause content written for previous versions of Internet Explorer to display differently than intended. To enable existing content to display as expected, Microsoft is providing a compatibility tag that you can add to sites that might be affected. This tag instructs Internet Explorer 8 to display site content as if it were in Internet Explorer 7. This option helps ensure that existing content will continue to display seamlessly in Internet Explorer 8 without requiring any additional code changes.