A thinner iphone

Them manufacturers are trying to make their cellphones thinner, that's what Apple do with their iPhones.

Iphone 2G:11,6mm

Iphone 3G/3GS: 12,3mm

Iphone 4/4S: 9,3mm

Iphone 5: 7,6mm

But when I hold the phones, I feel the most comfortable phone is The Iphone 4/4S. Meanwhile, the Iphone 5 makes me feel a bit "empty" and the Iphone 3G/3GS is quite tired after holding it for a long time. I haven't touched Iphone 2G yet.

What do you think? Do you hope for another thinner iphone?