I'd say maybe 60% of 3g's have this problem black and white.
Mine has cracks like Sun rays around the camera. A hairline crack above the sim tray on the side with the Sim removal hole as well as another developing new crack on the other side. Im guessing that piece is going to break off one day. Three tiny cracks around the Sleep Wake button. A hairline crack in the corner of a vibrate switch. A new developing crack at the bottom towards the chrome by the volume button. Cracks like Sun rays around the headphone jack.
Also the clearcoat on the sim tray is coming off.
Mine is 02.28.00 Firmware. So yeah im part of that first batch however despite cracks im not going to replace it since i'd lose that coveted 2.28.00 bootloader and my 2.2 firmware which keeps me unlocked when i travel between US, london and HK.
Hell, depending on the price of the 3Gs factory unlocked i may just get one.