Builds coming from the snapshot tree appear to have this new logo. I first noticed it this morning with an update to Chromium 11.0.697.0 (Developer Build 77308).
As of this comment build 77443 is the latest on OS X:
It looks much, much better. It's simpler and easier to identify. The old one was riddled with way too much detail.
Good move.
I do like the new look, but I wish that they kept the illusion of reflectivity a little bit. I know the matte look is in right now, but the name of the browser is Chrome. They could easily imply simulate a reflective surface using different matte monochromatic shades of the blue.