Slacker Internet Radio Comes to BlackBerry for Lazy-Ass Music Lovers Slacker, the Pandora-esque internet radio service , will release a free app for BlackBerry phones next month. It's remarkably similar to their own hardware —users choose pre-programmed stations or build their own, and songs are downloaded directly to the phone's memory card, so they don't require Wi-Fi or a cell connection to play. Telling Slacker what songs you like and don't like tailors the stations to your tastes, almost like getting a Genius Playlist of songs you don't have to pay for or otherwise acquire . Up to 8GB of free music that changes all the time? Almost sounds too good to be true. [Slacker ]