Phil Shaw has created a selection of browser conformance guides and test case documents for CSS2 media dependent stylesheets; CSS Mobile Profile 1.0 has moved to Candidate Recommendation stage at the W3C.

As well as conformance information and tests, Shaw's site contains an interesting article on the use of projection media stylesheets, as supported by the Opera web browser.

CSS Mobile Profile 1.0 has moved to Candidate Recommendation stage. This specification defines a subset of CSS2 tailored to the needs and constraints of mobile devices. During Candidate Recommendation phase, implementation and thorough examination of the specification is encouraged. Feedback should be sent to the www-style mailing list.