Can I stream media from one Plex server to another Plex server? I have Plex on a laptop and I can use Plex for the iDevices to stream media to them.

Can I do the same with Plex on another computer around the house like ZumoCast?
Yes.

For more complete information:  http://wiki.plexapp.com/index.php/Plex_Nine_Configurations_test