I wanted to add (and just not that it's a newer version and has to be better) but it really is a leap forward.
Its very streamlined and unlike Fedora 12 compared to Fedora 11, Fedora 13 is real improvement.
Boot up / down times are almost the same as these new netbooks in a suspend reboot.
My slowest machine (my actual LAN/WAN server, running asl) is a single core Celeron 3 GHz. It boot up under 60 seconds into gnome, and that includes asl and the long starting clamav on startup.
All desktops (full on installs with fedora development, authoring and publishing, etc, etc) boot up within 23 seconds from grub loading the kernel.
preupgrade was also great. All machines ad under a 512MB /boot, so I had to run the online boot option after the packages were updated. That also was easy.
package-cleanup --orphans I only had like 6 packages I had to fix. One of them is fixed as F13 had one package older than F11. However a yum downgrade fixed that.
All in all its the easiest upgrade, nothing broke apart from pgp in thunderbird, but that is the missing package. After I did two machines perfectly I even skipped backing up and just did it, 7 out of 7!
Its certainly current. About every package is at release and the inbuilt reporting automatically opens up bugzilla's on any issues, like selinux avc's.
Things get fixed fast (maybe as all F13 servers are reporting back) within 24 hours selinux-policy-targeted was updated to fix issues.
I upgraded the day goddard was released.
All the extra support was there, rpmfusion was there on the day as well.