IE9 Won't Support Windows XP, PCWorld (Mar 18)
Microsoft has said that the next version of Internet Explorer, IE9, will not run on Windows XP. There is no date given for its release - it's still in development - but my guess is about a year.
"No other major browser maker has announced plans to stop supporting Windows XP, but several have dropped other operating systems or platforms. Last month, for instance, Mozilla said it would not support Apple's Mac OS X 10.4, known as "Tiger," in future upgrades to Firefox. Google's Chrome for the Mac, meanwhile, only runs on Intel-based Macs, not on the older PowerPC-based machines that were discontinued in 2006."