PPK (@ppk) who runs the great website, Quirksmode, has released a CSS compatibility table for mobile browsers after having done extensive testing on a number of mobile devices. It's probably pretty safe to say it's the first table of it's kind on the net and I'm sure it will only be days (or maybe even hours) until other sites start including their own compatibility tables. To get such a comprehensive table he's done tests using Nokia E66, HTC Touch Diamond, SE P1i, Motorola V3xx, Nokia E71, iPhone, Android, Samsung F700, Sony Ericsson K770i, Sony Ericsson C510, and Blackberry 9500.
The table covers CSS 2.1 selectors so far and should be an invaluable resource for anyone producing mobile stylesheets. I wonder how long it will be until it's expanded on for CSS 3, etc. as I can't imagine it will be long before mobile browsers start to support it.
