Today RIM announced the Slacker application available for BlackBerry. It was demoed at CTIA and I got a chance to play around with it a little bit.

The relationship brings Slacker Personal Radio to BlackBerry devices. The biggest benefit is the ability to cache thousands of songs. Every time you hit a hotspot the device will sync and update the station. Plenty of music is available from Fergie to Bad Company. If you don’t like something, you can ban the song or artist. Conversely, if you do like something you hear, you can rate the artist or get more info. I didn’t see a “buy now” link, but I’ll bet donuts to dollars somebody is working on that.

Read the rest and see some pics over at MobileCrunch.