I agree. Like I said, I really enjoy the community and they're pushing hard for innovation -- since I moved away from AS3 and started focusing on JS, I feel like I've become a much better programmer -- but there are just too many variables to account for when it comes to a robust immersive, experiential solution
in browser. Once Webkit takes 80% of the user-base I'll change my mind, but not until then; the difficulties absorb and complicate seemingly simple ideas.
That said, I've started playing with Three.js lately and it's impressively straight forward and filled with capability.