iPhone too seems to have connectivity problems

According to the HotHardWire's article AT&T Insiders Report iPhone Exclusivity Going Away On Wednesday, it seems that iPhone also have connectivity problems : "Inside of AT&T, we are hearing that the iPhone is causing more trouble than ever before. On some level, having the iPhone is hurting AT&T's image. Because they are the only company to carry it, and it's such a data hog, it's largely to blame for AT&T's network troubles. We don't remember hearing about AT&T's "horrible network" before the iPhone--do you? The iPhone itself doesn't really handle the switch from 3G to EDGE very well, so calls that are in-progress tend to fail whenever the 3G bands aren't optimal and the phone attempts to step down to EDGE. It seems that AT&T is tired of taking the heat for this, and at this point, they may be smart to just let another carrier take some of those customers who are most inclined to complain."