I too am waiting on NCSU, but I applied to the design school. I have not heard a thing, nor have I received my portfolio back (via the return shipping materials I included with it).
Did you apply in-state? I read somewhere that those applying for in-state tuition hear back at the very last minute from State.
At this point, I don't feel very optimistic about the whole thing as its been so long, but I'm keeping a little hope alive.