not for me I stay at Vista. it rocks and is perfectly stable (stability index is 10) and Windows 7 is horrible right now. The stability index is about 1,25, I have app crashes all the time, it is not faster compared to Vista, I'll get a lot of features as updates (DX11, Ribbon, BITS4, PowerShell2) so I don't need to upgrade. He hype about Windows is just 2 words "missing knowledge".