Shuffler: automated file loading without iTunes

Shuffler is an app that, like iPod shuffle Database Builder, obviates the need to use iTunes to manage music on your iPod shuffle. The notable differences between the two programs are that Shuffler is Windows-only, works with any DAP that works as a Mass Storage Class-compliant device (meaning it shows up as an external hard drive on your computer), and handles the automating of the file transfer itself. You configure it with source and destination folders, which get automagically synced whenever you plug in your iPod shuffle (or other player), bypassing the need to use iTunes for music management. Power to the file system organizers, yo.