gnome-core depends on magicdev, so if you want to install GNOME you have to install magicdev. I'd all this a bug :-]
s/all/call/
Dave: not sure we really need this dependency either.
Elliot what do you think?
Dependency is there because magicdev is in the initial session. This is just the way it is until gnome-session gets fixed, which prolly won't happen soon.