Looks like the rumors were true. HTC announced today that Beats Electronics will buy back the remaining 25 percent stake it had in the headphone maker for $265 million, all but bringing to an end a two-year partnership that has never really worked out. It's quite a bit of cash for HTC, after it took a 50.1 percent share of Beats for $300 million in 2011, later agreeing to sell a 25 percent stake back to its partner just shy of its