Just chiming in, somewhat randomly, with my impressions of gaming lag or input lag on the V10.
In short -- I don't perceive ANY lag. It is comparable to my experience with a Westinghouse LCD I previously used for gaming because of its super low/imperceptible input lag. I can't discern any delay between a controller movement on the analog stick and movement on the screen. Ditto for button pushes.
I'll try to look for the specific post re gaming/input lag on the V10, if there is one, and add my impressions there. In the meantime, I'm very happy to report (and hugely relieved) that there is effectively zero lag on the V10 for gaming. Whew!
ALSO - I haven't even had a whiff of image retention, let alone burn in. I started out watching TV at dim levels for a few hours. Then played a game on Standard settings for about an hour. Then used the break in DVD intermittently for probably a total of 25 hours now. This weekend I took my V10 through a crash course in gaming.. plenty of fixed images (compasses, health bars, etc.) and haven't seen even a hint of image retention. So that's a relief too.
My only (minor) complaints:
1.) The set seems a bit dark to me. I haven't jacked the brightness all the way up yet, though. Still in the break in ish period, though I haven't babied it much.
2.) There is glare on dark scenes during the day time. Granted, I live in the desert and the TV is adjacent to a gigantic window. But there's enough glare for me to caution folks who are considering this set (or perhaps any plasma set) for mostly daytime viewing, unless you're willing to rearrange your living room/window/blinds/curtains setup. Since I work most of the day, it's not an issue for me.