I was accepted into the JD/MBA program on Monday Feb.21 as well. It was one of the best phone calls I have ever received in my life!
My stats: 700 GMAT score, 3.95 GPA from the University of Texas-Austin, Mechanical Engineering undergraduate. 4 years of work experience in environmental consulting.
I sent one update approximately two weeks before, which outlined my short-term and long-term goals in more specific details. I also mentioned a world trip that I had just completed, and I mentioned that I was presenting at SXSW Interactive.
I found this thread very reassuring to know that others were in my same boat. Best of luck to everyone still waiting!