From the latest Gartner report.
In the smartphone operating system (OS) market, Android expanded rapidly in the second quarter of 2010, overtaking Apple’s iPhone OS to become the third-most-popular OS in the world.
The rankings for the second quarter of 2010 are:
Windows Mobile (5.0%)
This time last year, Symbian had 51% and Android 1.8% of the market. Apple had 13%.