Negative things:I'm really afraid about dual-wielding weapons (or some kind of spells?). There hasn't been dual-wielding in TES games, right? Also Fallout style "level perks" are thing that I don't want to Skyrim. The OB's skills perks (when you get skill to 50, example) were good enough. The cooking/mining/woodcutting sounds weird, but they can be made well (maybe you could build your own house)? No information about fast travel system.
Positive things: Great graphics. It's good to see something fresh since Fallout 3. Improved AI and faces. Conversations with NPC improved. (Overall graphic and realism improved).
I hope that Bethesda will announce what 3 skills will be removed and inform about fast travel system.