The videogames press are at DEFCON 2 as Microsoft issues a warning their E3 press conference begins a whooping 5 minutes ahead of the timetable.
This is to make room for a "very special" announcement, in which those 5 minutes make the world of difference. Things now kick off at 10:25 am PST, and NOT at 10:30 am PST!
Forget at your peril, is probably the hidden message behind Microsoft's warning. GTTV's Keighley reckons its "musical in nature" because that's what his sources to him.