Welp, that page definitely worked. I really want one. The zone backlighting for better contrast sounds great. I don't know if there's enough 4k content available that I care about it at the moment.
As our probably ten year old Panny plasma begins to look more and more outdated, I'm looking at options. I don't know that 4K won't turn out to be the next 3D TV, but this looks like a potential option. If it turns out that I should have stuck with the few remaining plasma vendors, I can always turn it into a computer monitor.
Peripherally, I hate to be the guy to complain about the web layout (especially when the complaint is "it renders funny on WinPhone 6.x"), but I'm on a 13" MacBook Pro using regular ol' Safari, and that page is (for me) unreadable. I mean, I could read it, but I don't want to. Too much scrolling for the next tiny nugget of information, scrunched pictures, just plain work to try and get to the bottom.
Such lols for their poorly photoshopped hd vs 4k image. Like they said themselves just next to the image, it's 4 times more pixels, not 1000 times more pixels like that image seems to suggest.