Watching some of you discussing computers and how well versed you are in such matters, I thought that you might enjoy this latest annual summary. It's an interactive map at the BBC where you can view the global treemap by speed, OS, app, country, processor, or manufacturer.
The thing that was interesting to me was that while PC and Mac platforms are so consumer and business omniscient, they don't stand a chance against Linux in terms of supercomputing. Probably has something to do with open source vs. proprietary and flexibility.
Oh, another interesting thing is that the #2 supercomputer is (surprise/no surprise)...
Chinese.
Enjoy.