The new Sony Ericsson Z750a is will be available in the U.S. exclusively at AT&T this month. In a clamshell design, the Z750a has an exterior display that illuminates when the phone is in use. As Sony Ericsson's first 3G/HSDPA handset for the U.S. market, the Z750a features mobile broadband for a high-speed Internet connection and access to multimedia content that ... continued »