FCNewInit/xdm

prefdm
prefdm should be made an initscript, with dependencies to
 * login
 * netfs (home directories)
 * optional xfs

login may (dynamically) depend on:
 * network
 * local kerberos server
 * local yp services

Comments
xfs is really not needed on a modern desktop.

Wrt. to network, the desktop team has plans to have NetworkManager available on the login screen.