1UP reports, technical glitches concerning the audio led to the publisher shutting down the trailer. "We apparently missed the important half -- everything we saw so far was just repeated from prior trailers," said 1UP.
As previously noted, Metal Gear Solid creator Hideo Kojima is holding a separate press conference tomorrow. With any luck, Solid Snake will be in better shape tomorrow. We hear at his age, he has good days and bad days.