So, this place is full of trolls. Like i care ! LOL
XP actually is the most stable windows release , and YES i have opera,mozilla,safari,firefox installed aswell. BUT i also use programs like "firedaemon.com". Actually the support for winxp dont expire until 2013 afaik, and many companys still use it.
There are companies like Fry's that still used DOS-based programs on XP for their inventory control and CRM. The difference is that they're not complaining that IE can't render HTML5.