Pericles, I'm not sure what steps to take next (I was recently rejected from MN myself). I am also not quite sure how to feel about not receiving an interview from NYU (I was told "sometimes" students are offered them).
In any event, I sent an email to one of my POIs at NYU and she sent me back a very nice email. She mentioned the admissions committee for NYU met yesterday and she wished me luck. Short of that, not quite sure where else to take it.