Hah, the first person cam is pretty fun. But like you said, not practical.
Another feature YR2 has is a spin charge. You can hold either D or G, for right/left spins respectively. You hold these buttons before you pop off a jump, and your rider "winds up". When you pop of the jump, at first you will spin a little bit faster than usual. This is the only way to do dub corks, etc...
Also, the timing takes a lot of practice. So you can't just be poppin dubs no problem.
Spin charge is a new, cool, and useful feature which I hadn't seen before.