I have read in a forum that the final firmware, 3010.1 did not work well with plasmas very well and samsung received alot of complaints from the plasma owners after they released that version and they decided to withdraw it. They use the same firmware for both led, lcd and plasma, as you already know. I have also read alot of posts from the users who upgraded their LED TVs to 3010.1 firmware and found it bettter than 3009.2. They believe, 3010.1 made the 3d of tv better and gave more natural color
