Just to let you all know, I received my 50PM6700 on Friday, and it already has the 3.00.29 firmware on it, so you cannot escape.... So far, there's no new update for the model via online update tool. (US model) I do notice the ghosting people are talking about, and thats with TRU-Motion set to OFF.
As a side-note, The reason I got this set was to replace the Samsung PN51E550, which the ABL was horrible on. It's been discussed before, (on the PN51E550 official thread) but when watching hockey when the players move up and down the ice the ABL was crazy, fluctuating all over, and I couldn't stand it anymore. I also had the Panny UT50, but the brightness on that set was so low, I took that back as well. I will say, all 3 have the same glare issues, and the Samsung had the best picture quality, but the LG is right there, not too far off.
I also like the Picture Wizard the LG provides, as it makes setting some of the values much easier, and understandable.
You do lose a little screen size on the LG from the Samsung, but its not that significant.
Hopefully that will help someone trying to decide between these three. Of course, all opinions and questions are welcome.