Whereas other interviews just involved chatting with a professor or two in their office, the skype interview with Harvard was like being video conferenced into a board room where the entire admissions committee was sitting around the table. They had also announced in their email requesting the interview that they would be recording it for other members of the committee (?) who couldn't be there.
Harvard did interviews all day yesterday. Most intimidating sykpe interview experience yet (I've interviewed with penn, cambridge, usc, and toronto). Decisions to go out at the end of the month.