"Embedded Linux powered 14 percent of smartphones shipped worldwide in Q1 of 2005, up 412 percent from 3.4 percent in Q1-04, according to Gartner. Windows Mobile Smartphone shipments also grew, rising 50 percent from a 2.9 share in 1Q-04 to 4.5 percent in 1Q-05."
It's important to note that Gartner did not include any Pocket PC Phone devices in their numbers. I'm sure if you added in those numbers, the Linux and Microsoft numbers would be closer together. This is my biggest complaint about all these different surveys. There needs to be a standard clear cut definition of the different types of phones so we can compare numbers on an even playing field. They neglected Pocket PC based phones, but allowed a number of Linux based PDA phones (with stylus). Regardless, Linux has made a very impressive improvement in their rankings. It appears that Microsoft has more than just Symbian to worry about.
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"I have no special talents, I am only passionately curious" - Albert Einstein