As well know, once Microsoft releases a new brand, The old brand will be in terminated as Win 95, Window 2000, Window Me and any other know Microsoft software will be replaced with a new breeds of operating system that is more compatible and even better features.
Microsoft is putting all it’s effort on marketing the all new Vista, but still Window Xp has it’s own popularity in the market.
Currently Microsoft is working on third service pack for Xp, which is planned to be released first half of 2008. Where else on it’s site Microsoft Support, Microsoft says that "mainstream support" for Xp Home Edition will be continued developing for security fixes and other patches will be ending on April 14, 2009.
The Extend Support will only be release for security updates by end April 8, 2014.