I looked at the results board and found that Harvard used to notify all their admitted applicants within 1-2 days. Hope they'll do something different this time...
I've been only admitted to UNC, and am still waiting on Michigan and Chicago (which I suspect has already rejected my application) apart from H, P, and NW. In retrospect, I should really have applied to more schools. Leaving myself with too few options was a risky move.