[CentOS] using a Laptop as a KVM console?

Hi all,

Has anyone seen something like this before:

I want to use a laptop as a KVM console. Basically when a technician
goes to one of our datacentres, or clients he has to look for a free
LCD, keyboard & mouse to connect to a server (no network access,
reinstall, troubleshoot failed kernel / HDD, etc). And then hopefully
there's an open power socker in that cabinet.

So I'm thinking why not just use a laptop instead? It already has an
LCD, keyboard, mouse & power. Surely someone has, or may still, build
something that could connect to the laptop's USB port(s) and then to
the server's VGA & USB / PS2 ports, then act as a KVM?

-- 
Kind Regards
Rudi Ahlers
SoftDux

Website: http://www.SoftDux.com
Technical Blog: http://Blog.SoftDux.com
Office: 087 805 9573
Cell: 082 554 7532