T-Mobile's USA proposed union with AT&T might have gone down in flames, but that isn't precluding the boss of parent company Deutsche Telekom, René Obermann, from exploring tie-ups in the future. He's now telling investors that the company won't "exclude any option" for its US carrier, up to and including mergers with others. Before you worry that your One S might lose its luster through an outside takeover, though, the CEO has said it's "unlikely" that DT wi
