I don't know if this idea has been proposed before or if the product already exists, but here it goes anyway.
I've been a computer technician at a few different companies and I'm always making heavy use of a 8-port KVM. Oftentimes, I am working on all the machines simultaneously and am constantly switching back and forth to start processes and check on other processes. My productivity could be greatly improved if I knew which computers are ready for my attention without having to cycle through all of them and look.
Is there a KVM out there with two video outputs? The first video output behaves like always and just broadcasts the video for the active computer. However, the second video output is a combination of all 8 video streams arranged in a grid like a security monitor.