I actually like the idea of ChromeOS, so why did I predict its demise? The answer is that we already have millions of devices that almost meet the same ideal, and they are running iOS and Android. In the 1.5 years since ChromeOS was announced, Apple launched the iPad, which quickly became one of the fastest selling new devices ever. Google will necessarily respond by building Android tablets, which means Android will be running on larger, more powerful devices. All of the benefits of ChromeOS (security, instant-on, etc) should apply to Android as well, and I expect that any new Chrome features (mostly under the umbrella of HTML5, but perhaps Native Client as well) will also be added to the Android browser, since platforms succeed by being as large as possible.