The show started today. I find this conference same as Electronics Entertainment Expo but a Japanese version of it.
Official Site.
Here is GameSpot's coverage.
On Wikipedia
Lets share any news from TGS here.
Till now what caught my eyes was the new rebooted
Devil May Cry by Ninja Theory (the dev team which created Heavenly Sword).
Note: It would be much appreciated if someone found a link to the scheduled keynotes time.