Some might tell you we went through hell to get you some proper gameplay footage for Tomb Raider: Underworld but I won't. So here it is eventually, you just need to come inside to see Eidos' new baby.
To cut the long story short, the game seems to deliver on its promise by offering long sequences based on exploration and platforming. To me, the game is going to be closer to Anniversary than Legend in that area, at least in the level I had a chance to play yesterday.
Technically speaking, the game is solid. The environments are big and very detailed, Lara's animations have gotten more natural than before - though it's still close to Lara's original style - and the graphics are just beautiful.
The build I played must have been a bit old though since there were a few issues with the camera, the framerate and some glitches once in a while but from what I saw, the game is shaping up well and I'm sure all the fans will be happy to jump in as soon as the game is released.