You should move forward as if you didn't get accepted.  If they make an offer in a few weeks/months then great, but it's a coin toss. 

Oh, of course I move forward and wait for other answers. But want to know if anybody went through the wait list to enrollment.

Habrá que seguir esperando

All the people in the wait list should know that only 2~3 people on the wait list is accepted.

For GSD, only 2 people got in last year and for MIT, only 3 people got in.

I have several friends in those school so I heard a lot of information. 

If it's any hope for those on the wait list at their dream school, it's not as dismal as you might think...

I just graduated from a fairly rigorous and highly regarded graduate program, and many of the people in my class got in off the wait list (including forzametro him/her/itself; hell, forzametro was accepted off the wait list at another rigorous and highly regarded school as well that year). Were they capable, smart, and insightful students? Absolutely. 

Obviously, it behooves you to be realistic, but still hold out hope. Having been there before, it does work out in the end. 

(Also, one last bit of advice, really do research the program that you want to matriculate to: you're going to be spending a lot of emotional and financial capital at these place. Make sure you think it's worth it. Sometimes prestige can be a cruel mistress.)

Just wanted to say that I was finally admitted into CED Berkeley after waitlisted. So my story is the happy one, hehe