I'm not saying gopros are bad in any way. Purely saying it's kind of useless to have 4000 progressive lines of resolution, when current televisions produce 1080 progressive lines of resolution.
annnd, after doing some research, it seems 4k televisions are in the works as the next resolution from 1080p...
====
The latest in a line of broadcast and media resolutions, 4K is due to replace 1080i/p (1,920x1,080 pixels) as the highest-resolution signal available for movies and, perhaps, television.
Though there are several different standards, "4K" in general refers to a resolution of roughly 4,000 pixels wide and about 2,000 pixels high. That makes it the equivalent of four 1080p screens in height and length. Currently 4K is a catch-all term for a number of standards that are reasonably close to that resolution, and the TVs we'll see this year labeled 4K will actually be Quad HD, defined below.
There is still no single 4K standard--there are five or more different shooting resolutions available. In cinemas you see projectors based on the DCI specification.
Things are a little simpler in the home. The HDMI organization recently added two types of 4K support to its latest 1.4 specification: Quad HD (3,840x2,160 pixels) and 4K/2K, also called 4Kx2K (4,096x2,160 pixels). Only Quad HD conforms to the classic 16:9 ratio of modern television screens.
Meanwhile, some industry experts have questioned the necessity of 4K as a home format given the lack of content and the need for very large displays to appreciate the extra resolution.
"There was a huge, noticeable leap from standard definition to HD, but the difference between 1080p and 4K is not as marked," said researcher Dave Lamb of 3M Laboratories. Lamb added that "4K is at the point of diminishing returns," but there could be some benefits for screens over 55 inches.
======
A few articles went into great depth of how 4k digital projectors will affect movie theaters, and how much they'll benefit large screens over current projectors & film projections.
for home use, they'd need to come out with the next "player" that would replace blu-ray
