it makes sense for people who barely use their phones to actually talk to people.
This. I almost never use my phone for calls and if I do I am using the microphone attached to my earbuds to talk with them. The phone fits perfectly in my hand and in the pockets of the various pants I wear. Since I essentially use it as a PC replacement while I am away from my home computer, this size of device is perfect for me.
I can't imagine ever going back to anything smaller than the phone I have now.
KT
Edit: also, this has been covered multiple times in the proper forum.