Metro JS is a JavaScript plugin for jQuery developed to easily enable Metro interfaces on the web. This release focuses on Live Tiles, the Application Bar and Theming. It's early in the development phase, but all features should work on at least IE7+(Win/WinPhone), Firefox, Chrome, Android, Opera, and Safari(OSX/iOS).
I thought it would be interesting to list the release history for major versions of each of the big browsers. Two factors that I believe will play a role in eventually abolishing browser version numbers are the rapid release schedule, and auto-updating -- both of which, if I'm not mistaken, are Google Chrome inventions.