From the Amazon.co.uk software bestsellers list:
#1 Windows Vista Home Premium (Upgrade).
#5 Windows Vista Ultimate (Upgrade).
#10 Windows Vista Home Premium.
#20 Windows Vista Ultimate.
The Amazon.com list is somewhat different:
#3 Windows Vista Ultimate (Upgrade).
#4 Windows Vista Home Premium (Upgrade).
#8 Windows Vista Ultimate.
#12 Windows Vista Home Premium.
Why is Home Premium outselling Ultimate in the UK? Could it be the 88% markup of prices in Europe?