We've mostly utilized the 3G out of band functionality, this allows us to more easily bridge that gap between physical and electronic attack. Either way its been great and definitely a value add for us.
Pwn Plug Elite gives you several methods to egress a network
yak yak, lets see some action shots!
First some shots of the web interface to set up the various tunnels (taken from the web site)
Its pretty straightforward and the documentation the pwnie express guys provide will get you up and running with whatever tunnel method you choose.
ok now action shots.
Pwn Plug hanging out in an empty cube hooked up to the network
Final placement behind some boxes where it hung out for a few days.
Othere useful reading/resources