So yeah, a bunch of us were at SIGGRAPH 2011 in lovely Vancouver, doing talks, meeting people and going to super interesting sessions. Me & ReJ did a long technical session about optimizing graphics for mobile platforms. GPU architectures, shader optimization details, case studies from actual Unity games and so on.
Here it is: Fast Mobile Shaders (17MB pdf).
Note: the developer of the unanounced title in this document is "Luma Arcade"
, who also have a lot of nice CG videos here