I am running ubuntu 6.10 Edgy Eft as I type this =) .. it's all pretty much ok except one or two font oddities (the font in the scrollbar is unreadable) and what seems a long black moment after the grub stage. I haven't run this on a PC so I am not sure whether there is supposed to be something displayed as a splash screen but it does boot into the gdm login window without issues. The same "sudo dpkg-reconfigure xserver-xorg" steps can be used to reconfigure the screen settings to your liking. Edgy seems to boot quicker than it's 6.06 cousin (parent?).