The first two shots are killer!! Check this out. I had a GoPro Hero2 mounted on the front of my board with a suction cup:
Yeah, it is pretty shaky. It can be a cool angle though. Like when riding through trees. The GoPro suction cup is a monster. It removes air when suctioning and locks. It has been used on the outside of planes from what I have seen. I also use it on wave runners:I never tried that as I figured it would be really shaky or just fly off from vibrations if I was going mach10.
I am going surfing for the Summer though and fully intend to put one of those discs on the front of one of my surf boards...