Logitech's Revue isn't the only connected TV platform getting some holiday season update action, as Roku just announced a major update coming to all of its Roku 2 players (and the LT) with a slew of new features to. The two biggest additions we noted were support for MKV playback -- but no official local streaming channel yet, only USB playback is listed -- and mobile support for an official Roku iPhone app (unofficial ones are already avai
