Illusionlabs has posted a second trailer video for their upcoming skateboarding game called Touchgrind.
The game takes advantage of the iPhone's multi-touch screen by allowing you to use your fingers to "ride" the skateboard:
The player rides freely in a skatepark and performs tricks on ramps, boxes and rails. The dynamic and innovative controls together with the game being built on a high quality physics engine gives the players a high degree of freedom to come up with their own tricks.
There had been some concern about the depth of the game based on the initial preview video, but the new trailer shows significant more variability in gameplay: