I don't quite grasp the relation to levitation either... it might necessitate a "Grulf Icerunner's Fur Boots of Icewalking" (or equivalent) magic item...
But yeah, I hope icy surfaces in Skyrim actually cause characters to slide around. It was a really fun little detail as far back as
Ocarina of Time on the N64. Beyond the novelty factor, it can be used to make progressing through certain areas more challenging too, without just resorting to waves of enemies.