Android (operating system) and rival Linux mobile operating systems that were in development. These established players were skeptical: Nokia was quoted as saying "we don't see this as a threat," and a member of Microsoft's Windows Mobile team stated "I don't understand the impact that they are going to have." Since then Android has grown to become the most widely used smartphone operating system and "one of the fastest mobile experiences available". Reviewers have highlighted the open-source nature of the operating system as one of its defining strengths, allowing companies such as Nokia (Nokia X family), Amazon (Kindle Fire), Barnes & Noble (Nook),
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