If you’re a night owl (or an early bird in some cases) you can watch the presentation live from Sony’s website.
Quoted from the the tgs.playstation.jp website (directly translated using Babylon as is):
Tokyo game show 2010 is finally held! In the SCEJ booth [said 5] グランツーリスモ and [monster hunter portable 3rd] (CAPCOM CO.,LTD),] A corner having trial play exhibits more than 50 non-release title titles of the attention in total and experience PlayStationRMove more, The trial play zone of the title corresponding to the 3D stereoscopic vision prepares to. In addition, on the stage comprising a large-sized monitor for 3D, I carry out various events with a guest. I deliver this state in Twitter. Furthermore, a stream delivers the state of the stage from 13:00 on September 16! [please expect it in Sony computer entertainment Japan booth of 2,010] Tokyo game shows.] Press release
So if you're an avid Sony fan expecting new games, this show's for you. Just don't expect lots of US titles since this show is meant for the Japanese audience.
'Till my next installment.