Just got a message from Mark Karpeles over at Mt. Gox:
"We just said we'd be open June 25 at 3:00 GMT. We did not specify if that would be in 2011 so TECHNICALLY we are NOT late in opening."
It'd have been nice if they'd specified it to be 3
PM GMT.
I assumed 0300 GMT, meaning 10PM EST, June 24th.
Edit: err, I guess I did the math wrong and it is at 11 PM EST?