Googlephone or G-Phone or Android or G-OS. Whatever be the name they all say the same thing: $1,000+ Google - A company worth $310 billion dollar in 9 years.
Why an operating system ? well, look close. Its about who has the better control of the user, before/with the launch of mobile/fixed convergence. The Content Providers or the Infrastructure Folks?
and, of course, the rival is betting on it! or not quite.