nah. i bet we get more information later (i.e. a thicker envelope). i wouldnt call and bug 'em.
ps, cleaning out my wreck of a desk, and you know what i just noticed on my gtown letter? andy cornblatt calls me by my nickname! there goes the numbers-only theory some have posited-- he definitely had to read my recs, as i would not have referred to myself as other than alexandra in app materials.