With millions of people snapping up the iPhone, AT&T, the exclusive carrier for the popular phone, should be quite pleased with the stream of revenue it can expect from customers.But AT&T, the biggest telecommunications company in the United States, has a problem: analysts say consumers are dropping traditional landlines faster than expected. The company, which still gets 32 percent of its revenue from its landline business, reports its second-quarter financial results Wednesday and is expected to talk about how its traditional phone service is contracting.To read this New York Times story in full, see nytimes.com/2008/07/23/technology/23phone.html.