Hi, Spice project is now open, for more information visit http://spice-space.org, due to a server relocation the site will be down during this weekend.
Spice ship patched QEMU based on fairly old KVM snapshot as a reference implementation. The Spice team plane to push all the relevant bits into QEMU upstream. Spice depend upon guest side drivers in order to be fully functional, those drivers are unavailable at this point due to technicalities for that reason we advice not to try an evaluate Spice until the availability of the Windows binaries. Thanks, Yaniv