I've been experimenting with a style sheet (CSS) by Nokia.
Here's my "playground" using their stylesheet: http://catpin.com/ssr/
Look at the HTML source, you'll see where the stylesheet is loaded
and the output format is: media="handheld, screen, projection"
Here's the stylesheet file: http://catpin.com/ssr/ssr_catpin.css
I can't find the original link that Nokia had for Small Screen Rendering.