i feel your pain, i live in canada, there is about two and a half feet of snow on the ground now and winter is just starting!!
i haven't uniied as of yet this winter, but not because ofthe snow....my uni is broken, and i'm waiting for it to be fixed, i should get it monday(i better get it monday, i haven't uniied in like a month and a half!!!) anywayas far as winter uniing goes, i'm not sure how it'll feel, i've never uniied in winter (this is my first winter since i've learned to uni) i guess a studded tire wouldn't hurt. other than that, i don't know what to say........it's not gonna stop me from riding, i can tell you that.
maybe if you get a wider tire you'd be able to ride on the snow once it hardens a bit (it could work.)
that`s all i have to say about that.