bandits running up walls to avoid an arrow or sword.
3 guys surround you while two attack from the front so you have no where to go?
if you don't think this is hard, you must play on Very easy or apprentice or what ever it's called
I don't tend to get surrounded by enemies. I play on master.
If they made AI more advanced that would be fun, but having NPCs running on walls isn't much of a difficulty step-up from NPCs running on ground.
On another note, animations in Skyrim aren't exactly the best I've seen, and if they're going to add wall running, well, I can only imagine that it would look absolutely ridiculous. If they'd add it as a player skill it would probably feel stiff and rigid but if they actually put some effort into it, into making it feel responsive, and perhaps add some more maneuverability options and weave that into an acrobatics skill tree, I'd like that.