I applied and submitted June 6th. Haven't heard anything from Boston yet either.
And just out of interest, one of my friends was accepted off the Boston waitlist for the 2005 class (2 years ago, of course) the day before classes started!
dont worry guys, boston is ******ed...i applied on jun 6th and i have heard from all the schools except from BU. I guess we just have to sit and wait. I would suggest you all not to send the money yet though...