As 2008 draws to a close, here at Opera we are excited to announce an early Christmas present for you all—a first look at our new, improved Opera Presto 2.2 rendering engine! We are very proud of our developer team's achievements—the new engine features improvements across the board in terms of speed, stability, support for Web standards, and more.
http://dev.opera.com/articles/view/presto-2-2-and-opera-10-a-first-look/