Best App Advertisement Ever?

I can’t quite explain why, but after watching this video once, I wanted to watch it again; maybe the rolling skier put me into a hypnotic trance.  Also- why does the skier take up half the video?!

I don’t know if this app is serious or funny- skiing accidents and being harassed at the disco fall on opposite ends of the Emergency Scale in my book.  I’m too cheap to spend the $2.99 to find out- but the joy the advertisement brings is free.

Has anyone out there seen some other funny/intriguing app videos on YouTube?