Pandora was named the top iPhone app by Time magazine and has just been upgraded to a new version 2.0. The software creates radio stations based on songs and artists that you like based on algorithms from the Music Genome Project.
New features include a song progress bar, 30-second previews for bookmarked songs, the ability to create a new
station from a song or artist, artist information, cover-flow view for
song history, and some sharing features. Artist biographies also show up inline now.
You can also rotate to landscape to see recently played songs.