The streaming music service Pandora has become the darling of music fans everywhere for its ability to create custom music channels on the fly based on listener preferences. Seed it with the names of a few bands you like, and it starts playing music from those and similar musicians, making it ideal for discovering new music.

The Pandora webOS app puts the service in the palm of your hand, allowing you to import your saved channels from Pandora's Web site or create new ones. For immediate gratification, a "Buy this song" button links directly to the Amazon MP3 Store app that's built into webOS.

The audio output from Palm's Pre and Pixi phones is phenomenal and makes Pandora sound great (provided the Wi-Fi or 3G signal is strong). Plus, you can listen in the background while working in other applications; Pandora puts music controls (play/pause, thumbs up/down) in the phone's notification area so they remain accessible while you're using other apps.

There are several clients available for the webOS platform, but few of them are free. Of them, the best is Delicious Morsel's TweeFree, which offers the usual timeline, @ mentions, direct messages, favorites and search in a clean, elegant and intuitive interface.