T-Mobile announced yesterday a buy one, get one (BOGO) promotion kicking off on November 26th/Black Friday until January 18th. This promo is valid for new and existing customers who sign up for a T-Mobile family plan w/ a new two-year contract and purchase of one of their many features devices. T-Mo’s feature devices include the myTouch 4G, G2, HTC HD7, BlackBerry Bold 9780, and the Galaxy Tab. Select Android devices can be picked for free like the Defy, Charm, Optimus T, or the Comet. Those looking to get a new device on T-Mo, starting Friday you can make it happen.