By Carl Howe
If you live in the US and think you understand the mobile phone market and its operating systems, you should study this chart. It demonstrates just how much the mobile phone market varies by geography. The other amazing thing? Apple's (NASDAQ:AAPL)market share in North America is not only visible, but exceeds that of Microsoft (NASDAQ:MSFT) in other non-US geographies. That's fairly impressive since Windows Mobile has been around for six years and the iPhone is just coming up on 3 months. Perhaps Steve "iPhone has no chance" Ballmer can provide colorful commentary on how it happened.