Today they sent an email out to the AA profs about the March 15th open house.
It states that admitted students have be told to contact profs ahead of time to arrange meetings. And to expect emails from students 'very soon'.
FYI
It seems that people may be confusing Phd decisions with masters decisions.
Please be clear which program you were referring to when contacting MIT and hopefully we can clear up all of these misunderstandings.