Pendapat John Gruber mengenai desain battery case yang dikeluarkan Apple:

But I think the main reasons for this design are practical. The battery doesn’t extend to the top in order to accommodate the hinge design for inserting and removing the phone. Why it doesn’t extend to the bottom is a little less obvious. I suspect one reason is that that’s where the “passively coupling antenna” is. Extending the battery to cover it would defeat the purpose. Also, there’s a hand feel aspect to it — normally I rest the bottom of my iPhone on my pinky finger. With this case, I can rest the bottom ridge of the hump on my pinky, and it’s kind of nice. I also like putting my index finger atop the hump.

Sesekali, Apple memilih function over form untuk produknya. Tapi ternyata banyak yang tidak suka.