I ran across this in Windows 7 article. Anyone try it yet.
12. Calibrate your screen
The colours you see on your screen will vary depending on your monitor, graphics cards settings, lighting and more, yet most people use the same default Windows colour profile. And that means a digital photo you think looks perfect might appear very poor to everybody else. Fortunately Windows 7 now provides a Display Colour Calibration Wizard that helps you properly set up your brightness, contrast and colour settings, and a ClearType tuner to ensure text is crisp and sharp. Click Start, type DCCW and press Enter to give it a try.
Just Adobe Gamma with a better interface. That is clearly not a solution for any photographer in 2010, although not a bad app for getting a crummy monitor to browser quality for average Joes.
I've used it to get some friends' and families monitors "good enough".
Because it depends on your perception, it will never be precise enough for real work.