[OpenLayers-Dev] How do metacarta provide the VPF feed?

[Ian Mayo]

Hi all,
I'm interested in reproducing the metacarta vpf imagery provided in
many of the OpenLayers examples from:
http://labs.metacarta.com/wms/vmap0

Does anybody here know how metacarta produce this WMS layer?  I'm
familiar with VPF, but a google search indicates that the GeoServer
VPF implementation is a little dodgy - so I presume they're either not
using GeoServer or not using the native VPF viewer.

I'd appreciate any 'inside info' anybody knows.

cheers,
Ian