I think it'd work. You'd make the outer walls like an igloo. Then when you've finished that, simply put in the stakes intersecting above, cover with your fabric. And wham, you've got a sturdy winter structure.
Hey, I will IM you the next time I get on AIM.
I'm sorry I haven't yet. I don't get on very often
as of late. I may tomorrow morning if I can't
make myself sleep in.