Mr.Magnetichead said:No they're not. Those are from the speedtree demonstration. I'm sure you can read the text on the damm screenshots.
er...TomWithTheWeather said:Yes, they are from a SpeedTree demonstration within an Unreal Engine 3 map. And based on those terrain textures, it is a GoW map, though it's probably a test map and one that will not actually be used in the game.
Edit: In fact, if you click the link and look at the last pic, you'll see those windmill structures from GoW.
Before the big HD video, get a tiny glimpse of what is Gears of War by now with this video: 10 minutes of gameplay (basically the E3 levels), at Microsoft's pre-TGS conference. It's beautiful, smooth and action-packed, looks very promising. But you'll have to watch it in a very little window. At least, you won't tell that we slow down your computers...
[Update]: High Quality video added.