no way imo XP has a long term of running left in it years I believe.They have not long dropped support of win98 some 7 years and 2 operating systems later theres still a lot of pcs that will be used for years to come that simply will not run Vista.The AV companies are imo over projecting the take up of Vista. I would say 30 / 50 % of all pcs running globally do not run xp and remember that 89 % of all statistics are made up to support an arguement