I already have a 4-port USB hub in my LCD monitors, but it's just a bolt-on device. It shares only a housing an a power supply with the monitor.
I wish the monitor itself was a USB device. I hate pushing the tiny buttons on the bezel, trying to navigate awkward menus to change monitor settings. Instead I'd like to do it in software.
I already have a USB cable running from the PC to the monitor, so we're almost there!
I have heard that Mac monitors do this, so I'm just wishing that PCs would get their act together. It should have happened years ago.