I attended Google's "Next Generation Open Video" summit back in July. They've now posted links to the presentations from that.
NGOV Product Requirements (M. Frost / J. Luther, 68kB PDF)
WebM Product UpdatesWebM Update (J. Bankoski, HTML5-format)
WebM Adoption (J. Luther, 137kB PDF)
NGOV Project Update (P. Wilkins, 1.2MB PDF)Comparative Visualizations (P. Wilkins, HTML5-format)
WebM Contribution Process (J. Koleszar, 1.2MB 1.2MB PDF)
NGOV in Hardware (A. Kuusela, 180kB PDF)
Further Video Use Cases (H. Finnan, 601kB PDF)
WebP Still Image (P. Massimino, 697kB PDF)
The two HTML5 links aren't working correctly for me.
There's plenty of interesting ideas in there. I do think that they need to clearly define Levels, which wasn't then on their roadmap.