Over 100+ millions smartphones are sold every year and according to UMPCPortal, 95% of the market share goes to Nokia Symbian (65%), Windows Mobile (13%), Blackberry (10%), and Apple (7%). LiMo, Android and others (mostly Linux offsprings) formed the balance 5%.
If you look at the above statistics, and if you are a developer (hardware or software), it will be wise for you to focus on the top 4. You cannot be wrong there. Open source OSs like Linux and Android will take sometime to create any impact.
Linux is making a mistake by creating so many versions (LiMo, Moblin, Meamo, Mobilinux, OpenMoko etc) of their mobile OS. Now that Nokia has taken over 100% control of Symbian, you can expect to see further increase from their present 65% share. And if Nokia Symbian become an Open Source OS, the rest can kiss goodbye. Microsoft cannot sit down and watch. Their focus on their Windows Enterprise OS will definitely slow down their Windows Mobile growth further.






