I remember some months (maybe more than a year ago) when there was a story about a Doom-style engine in Javascript and someone commented how sad it was that with all this powerful technology, we're getting excited about 1990s style graphics in web browsers.

I had sympathy for that but it now seems to me like web technologies are improving at such a rate that we'll hit near-native performance in a few years (of course, technologies like Google's NaCl can do that now but it would be quite something to see technologies like WebGL and Javascript close the performance gap).