Here is a link to see some british riders vid footage. I think the scene here is getting better, even though there are no hills in the UK!
Some of the airs here are quite sick - follow the link and open the TV button. The lawndart is especially big.
http://www.freerideculture.com/tv/index.html
I love gymnastics and trampolines but nothing beats a 'Gymnastic Tramp' for fun