Comment 1 for bug 117084

Oh yeah, a third use case:

-imagine you work in the IT department of a large corporation that saves time by cloning Ubuntu desktop machines: just after you've managed to clone an Ubuntu machine, you want to hand it off to a new user. And the freshly cloned machine needs to have a new hostname or there'll be a clash on the LAN. So ask the next person who powers the machine on for a new hostname, as you want to be nice and let the user choose their own hostname (and enforce that it's not on the LAN already by trying to resolve that hostname).