Interestig, my biggest concern is theri Windows Live products enabling them to dominate the web even more than they do today, this could mean that in the end you'll need to be running their OS to get any decent experiance from the Internet. I agree with their prediction that Windows Vista's biggest competitor will be older versions of Windows, Mac OS is too expensive because it requires dearer hardware, and Linux is nowhere near ready for the average clueless user. I hope people will realise that Vista offers no significant advantage to XP and see no need to upgrade but there agan history will just repeate itself and Vista will dominate within the next five years.