A friend and I were just talking about all the sweet stuff the iPhone does as we watched the new guide video and he brought up an interesting point: Does it vibrate? All they ever talk about is silencing it and the ring tones. Personally, I rarely, if ever, have my ringer turned on. I feel like it's disruptive. So does anyone know if the iPhone will vibrate? It may sound stupid but this could be the deciding factor of whether or not I will get one.