For this week's giveaway we've teamed up with iMazing to offer MacRumors readers a chance to win an iPhone Duo and a copy of the iMazing software to go along with it. If you're unfamiliar with iMazing, it's Mac and PC software that offers a speedy, simple way to manage all of the data on your iPhone. You can make backups, add and delete photos, videos, and music, save content like messages, and much more. While Apple has the built-in Finder on Mac for managing an iPhone, iMazing has a ton of features Apple doesn't offer. You can set up automatic backups with snapshots that make it easy to…