AT&T network boosts may satisfy irate iPhone users - PC World

AT&T is working to bolster its claim of having "America's Fastest 3G Network," by rolling out HSPA 7.2 in six cities by year-end. The speed improvements are nice, sure, but they alone won't help the legions of angry subscribers who experience dropped calls and spotty service.

The rollout of HSPA 7.2 in Charlotte, Chicago, Dallas, Houston, Los Angeles, and Miami has nothing to do with capacity, and it will have no effect on users of older phones. This is purely a speed boost, supporting theoretical download speeds of 7.2 Mbps, and only helps users whose phones support HSPA 7.2. That means the iPhone 3GS will feel the difference, but the iPhone 3G won't...