They have not announced nothing Andrew,but they did have the Halo 3 trailer there.
I just went into the gtaforums.com and it said server to busy suckers.Thats why I prefer thegtaplace.com
No one knows how long it will be but I hop it is between 1 and 2 minutes, this way it doesn't give too little or too much information and keeps on our toes.
True I also hope they give us the location.
They will look similar as they are using the asme type of engine in GTA IV.
Do you know what type of engine there running on?,because the Unreal Engine 3 graphics are preety nice just look at Gears Of War.