They sent the offer letter at the end of the day Friday. I responded the next morning saying I accept and asking where we go from here. I hadn't gotten a call or email back from them so around 6pm today (4pm their time) I called and left a message on their contact's voice mail. I was hoping they would get back to me by the end of today so that I could make the reservations for the hotels tonight but no luck.
Hopefully they are just getting there stuff together and will get back to me with a verification response soon.