When we had our surprise hands-on with the Slacker for iPhone application a few days ago, the rep mentioned that it could be available “as soon as tomorrow”. Well, just a mere 5 tomorrows later, their prophecy has come true. Apple has greenlit the application, and now nothing stands between you and the customized internet radio goodness.

What it can do:

-Free music library featuring millions of songs
-High-quality stereo playback from any wireless connection
-Over 100 professionally programmed genre stations
-Create custom artist stations
-Fine tune stations to play more of the music you like
-View artist biographies and photos
-View album art and reviews
-”Peek Ahead” artist and album preview
-Pause and skip songs
-Rate songs as favorites
-Ban the songs and artists you don’t like

What it can’t do:

- Fight bears
- Solve criminal mysteries

Even if you’re a hardcore Pandora (or last.fm) devout, Slacker has plenty of features that make it worth checking out. Nab it from your local Stevie J’s Tunes and Vids here.