Panasonic 42" G10
Google "Panasonic Plasma IFC", it increases the motion resolution greatly.
I have a late 2010 46G20.
I'm not a retard, I fully understand how the different technologies work. I simplified my explanation as I assumed you didn't have a full grasp of how the technologies work, judging by your strange assumption that you can simply turn a 30fps game into a 60fps one by increasing motion resolution through frame insertions.
We have the same neoPDP panel. I actually have the G25, which is essentially the same with a couple of extra features.. Anyway, our plasma's are actually a 600hz subfield, which means it lights the phoshors 10 times per sec instead of the default 6 times (480hz) of other plasma's not sure where you are getting the 120hz from. Unless there's a diffference between the UK and US spec? Which could be. Not trying to start an argument. Anyway this works completely DIFFERENT to a 120hz LCD, and thus gives a completely different feel and visual experience, and 'our' plasma's are never going to increase the frame rate, like a 120hz does. The LCD's do actually insert extra frame rates giving a silky smooth impression, which does not work really well for anything outside of games, where in gaming we aim to achieve 60fps, movies we do not.
YOUR plasma if you have IFC turned on DOES insert frames like an LCD would. The 600Hz subfield drive was just to reduce the flickering of the display by constantly igniting the phosphor cells. This has nothing at all to do with the motion resolution of the display.
Panasonic 42" G10
One of these. When I used this first time after a Samsung M40 LCD I could'nt believe how much better it was!
I'm pretty sure you can turn this feature off on a lot of sets. My Samsung LCD had this feature which did exactly what you're describing and I disabled it straight away as it was horrible.
Another Panasonic 42" G10 here. Also wish I had another couple of inches :/.