Iriver's jukebox player is now freely available for download. Until recently the "iriver plus 3" required the purchase of an iriver player to download, but now anyone can download it from the iriver website, without registration.
Even if you do not use an iriver mp3 player, the application is useful. It is the first application (AFAIK) that uses AMG for digital file recognition - you can use it to identify files and group them into albums automatically. If you have a bunch of files that have bad tags, the app will clean them up quickly and easily.
Other nice things about the app are OGG support and album art.
The major weaknesses I see in the application are:
1. Plays MP3s, but does not include an MP3 encoder
2. The interface is funky
3. Windows only (wishing there was a linux version)
Has anyone else tried it out?