StingingVelvet: Thread makes me chuckle. WinXP is more than a decade old now, move on. If you want to keep it around for classic games that don't run on Win7 then keep it offline.
I think similarly, but if it is true that Microsoft was still supplying XP to some OEMs as late as 2010... well, they just shouldn't have done that, I guess. I'm surprised if they did. Most people don't update their Windows until they buy a new PC.
It will be interesting to know how this will change in the future. As Ballmer confirmed, Microsoft wants to become a device and service provider instead of a software (OS) company. In the future, will you even be able to install newest Windows to your post-PC device, or does it always mean you usually have to buy a whole new Windows device anyway in order to get the latest Windows?
I'm pretty sure I don't have the latest Android release on either my tablet nor my smartphone, and can't (without rooting) have them, even if I wanted. At some point I seemed to get new OS updates (firmwares) for my tablet quite often, but then at some point they just ceased to come anymore. Maybe ASUS felt they don't want to release the newest Android updates to their older Transformer tablet anymore.
Also I think the first Nokia Windows phones couldn't be upgraded properly to the proper Windows RT anymore, which made the people who had bought those phones quite angry.