DoubleTwist is a new program for the PC and Mac that lets Blackberry, Droid, Windows Mobile, and others sync their favorite music, movies, and pictures to their device with iTunes-like simplicity. And if you have an iPod or iPhone and want an alternative to Apple, DoubleTwist welcomes you too.
The company has recently added a native Amazon MP3 store to its Windows version allowing users to buy music from the retailer and sync directly to their device (Mac version coming soon). Check out the video for a tour.
DoubleTwist is a free download for Windows or Mac systems.