Can combine multiple PC into 1 virtual PC with 1 keyboard & mouse
with this FreeFlow Technology.
So can play game & suft etc without pausing games.
http://us.adder.com/products/freeflow
http://us.adder.com/products/adder-ccs4usb

it can go mixture of multiple screens from multiple PC.
but fore safe maybe at 4 PCs at 1 screen each or 4 PCs with 2 screens each.

It is part of the new KVM switch technology that enable you to automatically switch from PC to PC with the advance mouse movement detection.
You have to define each screens resolution and combine orientation and upload the configuration into the KVM switch.

When your mouse movement slightly across the edge of a sceens, the KVM switch automatically switch to another PC.

What DrBlueBox has described is the normal scenario for multi-screen PC. And won't happen to this.

This is something new!
Checked this youtube video
http://www.youtube.com/watch?feature=playe...d&v=XpfdyOaI4BI

Or search youtube with this keywoard "ADDER CCS4USB"