I sort of understand Todd's reasoning, but it still doesn't make sense to me to abolish classes completely. What will your character say when people ask "what do you do?"
...and when you answer "I'm a warrior", they reply: "yes, stupid, I know you call yourself that, but what do you actually
do?!!" Skyrim answers this without having you wrap it up in christmas paper. What's so bad about that?
Also I think having classes gives a lot of roleplaying potential.
I disagree, I think classes actually hamper and limit your roleplaying potential. In D&D for instance, you'll never be able to learn even the simplest lockpicking without taking at least 1 level of "Rogue". Likewise, you might be a rogue because you're mugging people and you might not even have the slightest idea how to pick a lock, and yet there you are being a master at everything that has ever been associated with the popularistic idea of what a rogue is. Even though your definition of a rogue might be a pickpocket or a spy.
In Skyrim, you are what you do. IRL, you are what you do. In many RPG, you only have to call yourself something and then suddenly you just magically know everything about it.