There he'll show more about how to operate on the battlefield. "It will look a little crazy and I think you'll like it, and I hope that everyone can come to Tokyo next week." 17th July at PlayStation premiere event.
"Sorry, because of time we only have the trailer, but next week in Tokyo I will play a demo." (why they just didn't announce a Demo is beyond me.)
Edit: The game has also been shunted to an 'Early 08' release.