Molyneux: "I will just say on record now that Fable: The Journey is definitely not on rails," he specifies, even going so far as to ask for journalists' signatures before they exit the demo room.
http://www.joystiq.com/2011/06/13/molyneux-declares-fable-the-journey-definitely-not-on-rails/
Ign review: "It's a completely on rails game"
lulz