Here's the bit I found most interesting, hopefully it'll quell some fears about the level scaling in Skyrim
Can you talk us through the way the enemies level up in relation to your character? Is this new system only related to dungeons?'
This is a system we continually tweak and improve. It's extremely complicated and detailed at this point. Its main goal is to make sure that the player is always finding new challenges that do not devolve into unavoidable failure or trivialize success.
Skyrim's levelling system will feel a lot like Fallout 3's, although we have tweaked it. There are places that are always easy, usually near where the game starts, but not always. There are places that you shouldn't attempt until you are higher level. These are always in the more remote places in the world. If you leave and come back, they won't have gotten any harder while you were away. And there are lots of in-betweens. All of them do some dynamic adjusting to try and match the challenge to the player.
Skyrim's levelling system will feel a lot like Fallout 3's, although we have tweaked it. There are places that are always easy, usually near where the game starts, but not always. There are places that you shouldn't attempt until you are higher level. These are always in the more remote places in the world. If you leave and come back, they won't have gotten any harder while you were away. And there are lots of in-betweens. All of them do some dynamic adjusting to try and match the challenge to the player.
http://pc.ign.com/articles/117/1176498p1.html