Kudos to John Carmack for being kind enough to help the developer get the demo working.<p>He seems like a nice guy and it's cool that he's still very much involved with game development (and apparently rockets).
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".
This is awesome, but the title is misleading.<p>At first I thought it was saying that the iOS version of RAGE was rendered with WebGL. Then I thought maybe that the iOS version of game was ported to a browser. Actually, the levels from the iOS version were extracted and are being rendered in a browser using WebGL.