The actual iPhone 2G and 3G is bigger than iPhone 4. With 3G being slightly wider than 2G. If we had fitted latest technology screens on that body with same aspect ratio as current iPhone. We would get an 5.85" iPhone 3G size but slightly taller.

Since it is so thick at 12.3mm I am pretty sure we could fit a battery that is even larger than iPhone Air.

It's a shame Apple doesn't have an entry-level phone at a constant price. OTOH, $599 is not that off if we think about inflation.

The technological progress is astonishing. But so is the societal degradation that came with it.