When did you apply to OSU and how soon did you receive your letter? I applied in early January, was complete in early February, and have been "Referrered" for over a month.
I only applied to 4 Ohio schools and still haven't heard from OSU or Case. I am still hoping that I get one acceptance out of the two, otherwise I am off to Cincinnati (which is seeming like a better option as the days pass).
Also, are you holding out for more acceptances, or have you already decided where you are attending?