AT&T today reported results for the fall quarter that it attributes directly to continued iPhone 3G sales. The company says that its net income dropped from $3.1 billion in late 2007 to $2.4 billion in 2008 but says that its overall revenue climbed 2.4 percent to $31.1 billion based partly on increases in wireless performance and considers the iPhone 3G a "success." The carrier activated 1.9 mill