Originally Posted by NJBlackBerry
The World Edition phone (8830) is a dual CDMA/GSM phone. It has a SIM card in it, and will work outside of North American on the 900/1800 GSM frequencies.
The 8330 Curve is CDMA only and will not work on GSM outside of North American.
You forgot to mention that the 8330 is smaller, has a camera, more memory, and a better keyboard.