Windows 7 Family Pack

Just found out about the existence of this pack, so I thought I would share:

http://www.amazon.co.uk/Microsoft-Windows-Premium-Upgrade-customer/dp/B002MT21N6/ref=sr_1_1?ie=UTF8&s=software&qid=1286280895&sr=8-1

Seems like a good deal if you have more than one computer in the house that you want to have running Windows 7.