Server Press is currently testing Fedora 15 alpha on 64 bit multicore, yesterday was the the testday at fedora community to test fedora upgrade tool, an automatic updater GUI based,for Fedora 13 to 15, Fedora 14 to 15. We tested this on a 32 bit Fedora 14. Result seems to be that upgrader may have to be improved.
We virtualised Fedora 14 which is the latest release for 2011. We will be presenting the details shortly.
Here is type 2 hypervisor based Fedora 14