extend Sizzle's form pseudo-selectors

extend Sizzle's form pseudo-selectors

 Since $.fn.serialize/$.fn.serializeArray was updated to grab the new html5 input types in 1.4, I wonder what people think about adding short-cuts to these in Sizzle, i.e.,

   
    
    
  1.  $(':url, :email, :tel, :search').doSomethingBuzzwordy() //plus the rest
    2.
The actual patch would be extremely simple, but I'm curious if other people think this would be useful. If so, I could submit a patch and tests, once I'm off all this pain medication. 

For those unfamiliar with the new input types, here's a demo page, with a link to the spec:

http://www.miketaylr.com/code/input-type-attr.html