This way elemental spells have more presence other than playing with the elemental strengths and weaknesses, which didn't had much presence anyway.
I have to agree there, now in Skyrim we'll actually have a reason to choose one element over another besides enemy resistences or weaknesses, and that's always good. And the different ways in which spells can be used sounds like it should make spells more interesting, and really, spells needed that in past games. There was absolutely nothing to distinguish two spells with the same effects except numbers, you could have called two seperate ranged fire spells "Fireball" and "Somewhat bigger, stronger fireball" and the names would have been perfectly accurate, and even amongst spells with different effects, while they did different things, you never really felt like you were using some sort of unique spell, this was most noticable in elemental damage spells of course since they all did the exact same thing, just with different visual effects and the kind of resistences or weaknesses that effected them changed, but even say, a charm spell didn't look or feel different from a calm spell, it just did something different.
If anything, Skyrim's magic system could turn out to be more fun than in past games, even if it is simpler, which I'm not yet convinced of, contrary to the incredibly shallow notion that sadly seems common here, more complex is not always better, and simpler is not always worse, sometimes, more complex is just more complex, sometimes, simple is actually better, whether because the supposed "complexity" just adds needless micromanagment to the system which just becomes annoying, or because the added complexity isn't in itself bad but gives the developers more things to work on, thus less time to work on individual things, leading to a reduction in quality of the individual aspects. In any case, I haven't heard of any changes to the magic system I'd object to so far (Yes, not even the removal of spell making. I know, it's unthinkable that maybe some people could actually approve of that decision, isn't it? It almost seems like not everyone here has the same opinion on matters! But that's impossible.)