Jump to content
The top things in my wishlist would be:
* CSS3 attr() implementation (attr() in CSS3 does so much more than in CSS2: http://www.w3.org/TR/css3-values/#attribute)
* Cross browser calc() implementation
* Allowing CSS functions like attr() and counter() in calc(). I wrote a blog post on this a while ago: http://leaverou.me/2010/09/on-attr-and-calc/.