We released Opera 10 a few days ago. Due to Web authors not being able to count to ten the User-Agent string is unfortunately slightly longer than planned, advertising Opera 10 as both Opera 10.00 and 9.80. Compatibility should be better because of this. This release also includes support for @font-face and a whole bunch of other stuff we had to implement in order to fully pass Acid3. The Selectors API is also supported.