In this video the author says it works in IE11 and will be working in IE10 "within a couple of weeks" http://vimeo.com/91393694 http://vimeo.com/91393694 .. whi

In this video the author says it works in IE11 and will be working in IE10 "within a couple of weeks" http://vimeo.com/91393694 http://vimeo.com/91393694 .. which would mean it's working in 10 now .. also, if they manage to make the preprocessor stuff, then it will work in "all" browsers (that understand the generated css of course..)