Techcrunch calls Google's announcement of an operating system designed to run precisely one application a nuclear bomb on Microsoft. A commenter further down tones it down a bit: "a bullet aimed at Microsoft". Or maybe it's a fart in the general direction of Redmond, WA?
The Techcrunch claim is based on a largely detail-free, claim-heavy blog post at the official Google blog. It's all vaguely reminiscent of the pronouncements that Sun Microsystems made for Solaris in the 1990s with almost zero....

