I'm making this just in case some of you aren't going to go to the IGN thread. Basically, it has been confirmed that there is a carriage system. You can use it kind of as an alternative to the fast-travel I guess...
http://pc.ign.com/articles/115/1158651p1.html
IGN: For getting around the world, what methods will be available? Fast-traveling, and if so is it the same system from Oblivion? Horse riding? Any other travel options, such as something similar to the silt striders from Morrowind?
Todd Howard: If you've been to a location before you can fast travel back. We also have a carriage system that can take you to some major locations that you haven't been yet, so it's a bit of a mix.