Well, from what people are talking about it, it seems fun. I won't watch the video until I play it though.
The videos are absolutely not spoilers. I don't think they'd imagine releasing anything nearly spoiling - the game hinges on the player not knowing what they're getting into. You can watch the .mov# videos, you'll be fine.
Edit: There's an iOS version in development:
http://www.galactic-cafe.com/the-stanley-parable-mobile-edition/
