Neowin has posted another of its Trivia Tuesday features with new facts and statistics this week relating to Windows Mobile. You might not know this but this is one of the oldest smartphone operating systems around and one that is rarely used today, replaced of course by Windows Phone 7.

Windows Mobile was first released on April 19, 2000 as Pocket PC 2000, and until February 2, 2010 there was active development on the platform. Windows Mobile is based on Windows CE, which is loosely based on Windows 95 code; Windows Phone today still uses Windows CE. The platform changed from the Pocket PC name to Windows Mobile on June 23, 2003 with the release of Windows Mobile 2003.

The Today Screen on Pocket PC 2000 (left) and Windows Mobile 6.5 (right)

Windows Mobile has had several major releases right up to Windows Mobile 6.5 (the latest version), and many of them have had cool codenames. These include "Rapier" and "Merlin" (for Pocket PC 2000 and 2002 respectively), "Ozone" (Windows Mobile 2003) and "Crossbow" (Windows Mobile 6). Our personal favorite is Magneto, which was the codename for Windows Mobile 5.

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