upgrading dev->udev made my fedora system totally unusable

Beware! I apt-get dist-upgraded my system to the latest fedora development rpms, and part of that upgraded dev to udev. All very nice. Except I couldn't open a terminal. So I rebooted. And then it wouldn't even boot up properly because it couldn't allocate a console. So I had to use a rescue CD to create the /dev/console node, then it was fine.
See udev broken (removes dev, gives "unable to open an initial console" warning on reboot) - this was marked as NOT_A_BUG - fantastic!