4K resolution video is the next big technological leap. We don't have the TVs for it just yet, or the eyes for it? But the point the is, it doesn't take a RED Epic to shoot in 4K resolution. Now, Point Grey's Flea3 webcam is equipped with Sony Exmor R sensors to do that.

The technical feat here is that the camera is able to push video to any compatible, USB 3.0-equipped device in real-time—something that requires a fair amount of bandwidth. But at $945, you're wondering if you really need such a high resolution.  [Point Grey via Engadget]