Rocketboost, that "breakthrough wireless audio technology" from Best Buy, just got a feature boost in the form of a new Control App. Owners of the company's Rocketfish and Insignia speakers and soundbars should be jumping for joy -- assuming they still have energy after completing all the steps necessary to start beaming wireless tunes. First up on the shopping list is the "Rocketboost Wireless Receiver / Transmitter," which you can pick up from your neighborhood Best Buy for a measly 65 bucks. Once you've got your hands on that hideous black box, you'll have to plug it in ...