Android (operating system) store, and by September 2013, one billion Android devices have been activated. , the Google Play store has over 2.7 million Android applications published, and , apps have been downloaded more than 65 billion times. The operating system's success has made it a target for patent litigation as part of the so-called "smartphone wars" between technology companies. Android devices account for more than half of smartphone sales in most markets, including the US, while "only in Japan was Apple on top" (September–November 2013 numbers). At the end of 2013, over 1.5 billion Android smartphones have been sold in the four
Windows Mobile Smartphone Windows Mobile Smartphone Windows Mobile Smartphone is a smartphone running the Windows Mobile Standard operating system. The hardware specifications for the devices is known as "Windows Mobile Standard". The Windows Mobile OS was born out of a brief partnership between Sendo, a British telecommunications manufacturer and Microsoft. The contract provided for source code published by Microsoft, to enable Sendo to create the then-name Windows Pocket PC OS for their products. Microsoft withheld major blocks of the code, passing the work to Taiwanese electronics company HTC, and enabling them to create the HTC Canary, based on the Smartphone/WM Standard OS. Windows