Motorola is planning to sell a new phone that will act as your personal entertainment center. “The company plans to launch a service, dubbed iRadio, that allows the new phones to download songs and radio programming from an Internet- connected computer each day, then beam them to car stereos or home entertainment centers. The iRadio initiative reflects the intense interest that phone manufacturers, music companies and mobile network operators have in new music services for cellphones. Their appetites whetted by the multibillion-dollar global market for ring tones, they are eager to sink their teeth into song downloads, online jukeboxes and music videos — even though it’s not clear what, if anything, customers will buy.”