IE 9 is available!
More details here: http://blogs.msdn.com/b/velloso/archive/2010/09/17/internet-explorer-9-beta-is-here-some-information-for-developers.aspx
View ArticleIE9 Beta Guide for developers
Pretty extensive guidance for IE9 development: http://blogs.msdn.com/b/velloso/archive/2010/09/22/very-detailed-documentation-for-ie-9-beta-developers.aspx
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