What happens when you drop an iPhone 3GS in the pool?

While this guy did not do it on purpose, he managed to drop his iPhone in the pool. The amazing thing is that the phone still worked, it even recorded everything. From the fall, to picking it up from the pool surface. There are three things we don't know about this video:

1. The lifespan of this phone. We do know it had to last long enough to upload the video to Youtube
2. Is it fake? We still don't have proof that its a 3GS
3. Did he have a waterproof case

Fake or not, its kinda obvious that you should never try this to your electronics.