I have the same problem. In my OWA it shows "Mobile Devices" and lists some information (though a lot less than shassouneh shows). Talked to one of our IT guys who said it is definitely the Pin-Lock problem raised by shassouneh.
Incidentally, TouchDown works perfectly, though I hate that in a month I'll have to pay $20 for what I consider basic functionality on a Smart Phone. Pretty disappointed in the Epic at this point.