"Today's new kvm architecture is ia64, aka Itanium 2. Like s390, it is only provided in the git tree, not in the tarball. Windows and Linux guests are supported."
Great news, thank for giving this link!
I'll evaluate it when I have some free time, if it works well, I'll finally replace VMware hosts with KVM!
Looks like I was happy too fast - it's network drivers only, so disk access will be poor, still.
KVM would be a great product if there were paravirtual drivers for non-Linux systems (specifically, Windows, as it is what would be virtualized along Linux in majority of cases).
Without them, I/O performance is really bad when compared to VMware or to products which have paravirtual drivers already (commercial Xen releases).
Lately, there is some activity in creating open-source PV Windows drivers for Xen, but it's not that stable as of yet.
Here you go! http://sourceforge.net/project/showfiles.php?group_id=180599
32-bit guests only is a bit of a drag, but it does work with 64-bit hosts which is nice. Hopefully that gets some attention soon.