Here’s a list of the 4 main differences that makes iPhone 3G quite better than the older 2G.
1. GPS Tracking (for using with Google Maps and other tracking apps downloadable from the App Store, like “GPS Tracker”, “Take Me To My Car” and “Speed”.
2. 3G network for faster data downloading (when using an AT&T SimCard).
3. 3.5 mm headphone minijack for using all your headphones (the alder one is compatible only with Apple’s original iPhone 2G jacks or you have to buy a converter).
4. More space, of course (see iPhone Short Description for exact memory space of iPhone 2G and 3G).

Recent Comments