If it's free as a one-off to adopt users not convinced by Windows 8, then that's fine, but I'd worry if it's free long-term, as it means they'll be making money in other ways - adverts?
It's only a matter of time before Windows becomes subscription based for consumers.
I hope not(advert wise),they could do a limited free period for first few months,gives everybody a chance to jump on the bandwagon.
I still expect to pay, but as they say "not over until the fat lady sings".

