This helmet is really nice! If anyone is looking for a new helmet, I would say that the Bontrager Oracle is worth consideration. I just picked mine up today.
It's got a carbon fiber frame, about 3qtr of a pound in weight and the adjustment dial on the back is pure class!
The aerodynamic properties of this helmet are very good. I've done a few outdoor rides now and since it's been about 30 degrees out I can feel the cold air hitting my body once my body temperature heats up. When in the drops I can literally feel the air enter the helmet, go over my head, and exit the back of the helmet and traveling down my back. It's pretty awesome.