Microsoft's annual E3 press briefing on its Xbox business is, if nothing else, never a dull affair. Heck, last year, a car rose out of the stage! And one year, some of The Beatles showed up. What's gonna happen today? That's the question! We get the feeling that our friend the Master Chief will make an appearance in at least one Halo game announcement, the couch-sized men of the Gears of War universe are likely to show up, and we've got our fingers crossed for a hovercraft or some madness rising out of the stage this morning. We'll get started shortly after 9AM PT/12PM ET.