Walt Mossberg has his initial thoughts on Google's Chrome up here, but I disagree with his assessment that Chrome's speed is less than Firefox and Safari. I don't know what sites Walt was surfing, but I agree with TechCrunch's Don Reisinger more.
Google's Matt Cutt has a good Q&A post here. I'll pass on my deep thoughts for now. Busy with work and a tech op-ed I was noodling on before all this news broke.
Also Google has just posted videos telling their story...
The story behind Google Chrome
(There's Brian, who I've never seen clean-shaven:)
10 Features of Google Chrome