What's S In iPhone 3GS?

I found this interesting Video at Gizmodo. They also tackle the question regarding to where the S of iPhone 3GS is coming.

Here is what they say in particular.

Of course, this video may be fake, but the sound is so clear that it is difficult to believe that it is in a box. However, it is even more difficult to believe that an iPhone can survive this kind of water treatment.

At the same time, there is only one way to be sure. If one tries it. Of course we don't recommend putting you iPhone into the water