Given a game doesn't generally have infinitely large textures we'll expect some sort of scaling, so it's reasonable to assume the video card doesn't need an equivalent performance improvement that it has historically moving from 800x600 to 1280x1024 and so on, but how much better is the visual quality going to be simply making something with a finite amount of detail ever-larger?

Hopefully it at least dithers but that only works for a certain magnification zoom beyond which everything starts looking disturbingly blurry. Will this mean game developers start scaling games to these huge pixel counts and ultimately that we all need Blu-Ray drives just to read a disc of sufficient capacity to store all this data?

Otherwise, I don't see all that much of an improvement in gaming unless you like to sit on the couch and have the screen several feet away. Today you can just scoot the monitor closer to you if you want a more immersive field of vision even though the aspect ratio is wrong in the corners but so it would be with several monitors on any traditional game not set up for tilted angle screens.

At least it's progress for the multi-window power users, and like anything else you have to have the feature for it to be reasonable for game developers to put work into supporting such a thing and since websites these days seem intent on taking up only the middle 10% of our wide screen monitors we can just stack monitors one on top of the other and see the whole webpage using binoculars.