Never heard of it but it does look interesting.
It's probably a good idea to join and find out more about Spice before installing it.
https://lists.freedesktop.org/mailma...fo/spice-devel
Looks like the standard tar ball to me. They should come with an INSTALL file or a README file to tell you how to install it.
Code:
SPICE vdagent - spice-vdagent-0.16.0.tar.bz2
x.org QXL video driver - xf86-video-qxl-0.1.4.tar.bz2; Also contains Xspice
Looking here it's been around for a while.
http://www.spice-space.org/download/releases/
-::-Wait for other members to give you their take on this, I've never tried it.-::-