I got my response via normal mail, though I'm not sure when it actually arrived (currently living overseas, they mailed it to my permanent address in the states). I think less than a week ago...haha, I must have been really far below the cut if I'm one of the earlier ones to get rejected!
Anyways, like you guys said, info is scarce. These are the two best sources I found--a Med School specific forum (lots of med school winners in general), and a single blog entry:
http://forums.studentdoctor.net/showthread.php?t=577719
http://chiangmaichic.blogspot.com/2008/02/soros.html
Hope this helps. As the sites say, practice practice practice if you get an interview. Good luck!