An anonymous reader writes "AT&T CEO Randall Stephenson said today that he expects wireless carriers to start offering data-only cellphone plans within the next 24 months. 'Analysts see such plans as a logical extension of trends in wireless technology. Smartphones with data service can already use it for Internet phone calls and texting through services such as Skype. Phone calls are also taking a back seat to other things people do with their smartphones. AT&T has been recording a decline in the average number of minutes used per month.' He says there isn't a specific plan in the works — he just think it's inevitable."