Well, donno for that, but I am really happy with it. I tried to watch FullHD soccer without it, and judder was unbearable. Once U get used to it, its impossible to watch anything without it. True, I didnt try BR 24 FPS (I have FullHD IPTV here in Croatia, didnt buy BR player yet), but everything else works lovely. Zero artefacts, absolutly smooth motion and camera panning... Taht goes for SD TV, DVD, HDTV... Why would anyone want to turn it off?
For comparison, I also have Philips CRT with pixel plus, and Panny is better - Philips have problems with artefacts in quick motion scenes.
Only problem i noticed, is with soccer: high altitude kicks makes ball judder, I suppose because ball is hard to recognize against lots of peoples head (public).