The Mac media management application formerly known as Democracy Player has been around for a good while; since 2007, it's been called Miro and has offered solid podcatching, BitTorrent and video viewing features in a convenient open-source application. The current version of the app, 4.0.1, rolls the media library features of iTunes, the codec support of VLC and conversion capabilites of Handbrake into a single application.
Miro can import your iTunes library automatically and lets you convert downloaded media into an MP4 or H.264 format compatible with your iOS device. You can also use Miro to download media directly from YouTube, a podcast feed, Amazon, BitTorrent and more.
Mac users with an Android handset can sync to Miro and make purchases from the Android Market and the Amazon AppStore for Android. Miro is open source, free and available for OS X, Windows, and Linux. An iPad version is in the works and should be available soon.
[hat tip 9to5Mac]