I too prefer the more rounded exteriors. It feels better in the hand. I think it's just a cyclical fashion choice, was an adjustment period when it was iPhone 3

I too prefer the more rounded exteriors. It feels better in the hand. I think it's just a cyclical fashion choice, was an adjustment period when it was iPhone 3 (rounded) to iPhone 4 (squared) too and it more noticeable when not cased.