In February 2000, Microsoft has reach the news codenamed is <nowiki>"</nowiki>Ozone<nowiki>"</nowiki> for Windows Mobile 2003, has been starting history of January 2002, in June 29, 2000. Pocket PC 2000 can running for codenamed <nowiki>"</nowiki>Ozone<nowiki>"</nowiki> in Windows Mobile 2003 Beta, in December 2000, Microsoft notification for Windows Mobile 2003 has been mistake, released on June 23, 2003 in for pubilc, in September 20, 2001, Microsoft reach renamed is <nowiki>"</nowiki>Windows Mobile XP<nowiki>"</nowiki> on the officially people can be use this names, Windows Mobile 2003 can starting the Pre-RTM version until December 2001, and RTM version on June 2003 after released.