Why Do the Android Phones Have Chins?
Have you noticed the G1 and G2 both share one common physical trait? Yeah, they both have chins. And there's a reason for it *cue in Bernard Herrmann's Vertigo music*
According to HTC: Personality. The Androids are like people, they have chins, they have personality. The other reason: They also have protruding nippleballs: Having a chin allows the HTC engineers to pull the trackballs out more than competing devices, making them easier to use while protecting them with the chin.