I put FC4 on my laptop earlier this week and did some mucking around. I am impressed with some stuff, like my 1920x1200 resolution wthout hacking xorg.conf as always, gnome detects my camera now with no problem. But I don't like that ACPI is not compiled in the kernel for the normal power saving features. I can probably make it work, but I too went to FC4 so I would'nt have to do the normal hoop jumping. I'll probably find more things that are good and bad, but over all it seems nice. Not bad for free. And it gives me the Redhat warm and fuzzies. (I still love Debian though).