The problem is if you activate it and then change some of the hardware you have to call MS and quote about 20 numbers. Then you have to type in 20 numbers that you get quoted just to complete installation.
I'm lucky this OEM copy doesn't require activation. I'll be able to play old games on it till they come out with some retro emulation package.
activating online is much quicker and easier, I currently have 7 systems 3 activated over the phone (which sucks)
I have a 3g wireless network that I can tether for a quick connection to activate but there are other methods too.
of course when you connect MS loads the iWatchyou software (an apple product originally developed for ipod) to let them use your screen as a camera, but just to watch you undress (bill likes that apparently)
