It doesn't have a lot of info but this Gamespot Preview has a paragraph or so on crafting, which is the most I have seen so far. This is a feature I am really looking forward to and it sounds like they made it better than say the Fall Out 3 stuff.
If I am late on this link I'm sorry and you can hate/flame me

http://www.gamespot.com/xbox360/rpg/the-elder-scrolls-v-skyrim/news/6340446/side-quests-and-crafting-in-elder-scrolls-v-skyrim?sid=6340446&mode=previews&tag=topslot;thumb;4