Microsoft giving Vista Business / Ultimate users 'downgrade' to XP option

It's no shock that Windows Vista isn't, shall we say, universally loved, and it's also unsurprising that a plethora of businesses have voiced their preference to keep on runnin' their operations on Windows XP. Presumably in response, Microsoft is "quietly allowing PC makers to offer a downgrade option to buyers that get machines with the new operating system but want to switch to Windows XP," but the program only applies to Vista Business and Ultimate editions. The likes of Fujitsu, HP, Lenovo and Dell all have processes in place to ensure that customers have the ability to downgrade if they so choose, and while some firms are still selling their PCs with XP pre-installed, debates are already swirling around how long that tactic can remain in place.