According to Net Applications, GNU/Linux is rapidly gaining share in the “designated market area” of San Francisco:
|Week of||Share GNU/Linux|
Combined with that other OS being down to 42% the future is clear, M$’s OS is just another player in a free market with choices available. A year ago, they were showing 23% for GNU/Linux. For all of California, they report 7.6% GNU/Linux. This likely means more than Google are using GNU/Linux for desktops.