los93sol: it currently does not exist yet.. this is still the design and sketch phase, but...
Basically, in the setup wizard, you would fill in the blanks for your profile information. Once this is filled in, and the router reloaded, the system would log ALL the users into their respective accounts simultaneously, and keep them there. Basically what you're doing when you flip users, is telling the orbiter that you wish to see messages etc directed toward you, so you can have user "thom" selected on the couch orbiter and on the TV and on the Cisco phone, and all the IMs and email notifications would go to those orbiters (conversely if I tried to write a mail message, it would be from me. Whereas, user "mary" could be logged in on her cell phone orbiter and she would recieve mails and IMs there.
Also keep in mind, this ties in with the user access control currently present on the Orbiters (where you can select which users can use which orbiters)
This is all possible due to the way that DCE works, the messages all flow through the system and get populated to the appropriate data grids etc, we just populate everything, and when you change users etc, orbiter just takes that into account (<%=U%>), when determining what to display.