On one hand, it's really impressive to see something like this running in a browser after having years and years of flash games as the pinnacle of browser gaming. On the other, it seems somewhat sad to me that it has about the same performance as a modern cellphone when there is so much more power hiding under the browser. Perhaps off topic, but this really makes me think that there is need for things like Native Client, despite a lot of people openly saying they wish the project would just die since it is not what the web "needs".