It seems like last year, most people who applied before the first of the year heard something on or at the application closing date. I submitted in November of 2012 and got my acceptance e mail on March 15th, 2012, which was the application closing date. Even though they review the apps and accept students on a rolling basis, they do not notify students on a rolling basis (at least this is how it was when I applied last cycle.)
My advice is, learning to be patient for this program is just a warm up for being patient in the med school admission process. It is all a waiting game, and you need to get used to playing it. It sucks, I know. I was a non trad student with a wife and two kids, and it makes your life nearly impossible to plan.
Also, if you are applying for this program, you need to be very honest with yourself. Utsktsk is spot on with his "double edged sword" comment. If you are not prepared for this program, you will fall on your sword. This is not undergrad, which has probably come easily to most of you. Do not start this program if you are not ready to step up and make learn the material. There are very rarely "make or break" moments in the med school process, but this program comes very close to being one of those situations. If you make the grades, and all other things are in place (MCAT, undergrad not horrible, etc.) then you should almost certainly find a place to go to med school, especially if you apply broadly. On the other hand, if you do not make the grades, screw around, make a reputation for yourself as a "problem student", etc. then you can almost certainly say goodbye to your chances of getting accepted somewhere. Granted this is just my opinion on the matter, others may have more to say.
The major benefit of this program, which I feel is the underadvertised advantage, is how well it will prepare you for your first year of med school. Talking to MS-1 students who did this program last year and those who did not, it is clear that MedScis have a distinct advantage, and most are in the top 10% of the class. Those who are not in the top 10% are in the top 50% and probably do not have to put in a lot of effort to stay there (fully where I expect myself to be next year...haha.)
Lastly, I will agree again with what Utsktsk said, regarding the program being viewed favorably by most Texas med schools. I was also surprised at how positively the program was received by OOS med schools. OOS schools would go through my profile, and more often than not this program is what received the most positive response over many other things in my app. Keep in mind I lived and worked in Saudi Arabia as a flight paramedic for over a year, worked as a flight paramedic for a children's hospital, along with a few other things, and people wanted to talk about this program...I was a little surprised.
A lot of people kept telling our class prior to when we started that this program would be one of the most intense, annoying, satisfying, frustrating, happy, sad, mad, experiences thus far in our academic career. I wrote it off when people said that to me, thinking they were being mellow dramatic. So now it is my turn to tell you, that this program is definitely all of those adjectives and more. You won't understand it until you are knee deep in it, but get yourself mentally prepared for it.
Best of luck.