Cracking open Apple's iPhone 3G

CNET Networks's TechRepublic runs a regular series called 'Cracking Open' in which it takes a look inside a variety of gadgets. ZDNet.co.uk is publishing this excerpt.

From the front, the iPhone 3G looks almost identical to the original iPhone, which we cracked open in 2007. Here you see the screen, speaker and home button.

According to Apple's technical specifications, the iPhone 3G is 4.5 inches high, 2.4 inches wide and 0.48 inches deep. It weighs 133 grams. The phone's multitouch display offers 480-by-320-pixel resolution at 163ppi. The iPhone 3G is almost identical to the original iPhone in size and weight.

The iPhone 3G has an accelerometer, proximity sensor and ambient light sensor.