[apparent]

Thinner anywhere means less weight, which is good.

[drdaeman]

I'm not sure about this. I think that if the weight balance is weird (esp. in the heavy top light bottom scenario - I sincerely hope it's not a thing with this new iPhone), it'll act as a lever and put more strain on your fingers to hold the phone.

[apparent]

I have wondered about this also. It may require holding slightly higher up on the device, especially when reading in bed.