Some relatively simple interface tweaks to the Pandora One AIR app add some nice new functionality, including a track progress bar and access to your song history. Both are accessible by simply clicking the album cover, which insets the album art and makes room for the other two controls. You can navigate backwards through the last hour of your listening, thumbs up or down anything in the playlist, and/or purchase any of the tracks from the list.
Windows users (sorry Mac fans!) can also use a mouse hover over the Pandora icon in the system tray to get a quick view of the current track's song title and artist.
Two other small tweaks include positional memory for the app window, so next time you start up the app it will be right where you left it. Version 2.0 will also remember your last volume level as well.
Lastly, the wait time between songs has been sped up, which means no more long waits after thumbs down-ing a track.