Extra Future[Peter-Paul Koch tests 19 different versions][link] of WebKit/KHTML and [creates a table comparing their successes and failures][table]. His verdict: You’re going to have to test in multiple WebKit-based browsers for awhile, yet.
[link]: http://www.quirksmode.org/blog/archives/2009/10/there_is_no_web.html “QuirksBlog: There is no WebKit on Mobile”
[table]: http://www.quirksmode.org/webkit.html “The Table”
[A plugin for Internet Explorer on Windows that aims to bring modern HTML5 capabilities to IE][link]. I’m not sure exactly how much this will help web developers: One of the major sticking points that makes IE still so widely-used is that users in large organizations *aren’t allowed to install things*. Not even plugins.
[link]: http://code.google.com/chrome/chromeframe/ “Google Chrome Frame – Google Code”