This looks awesome, we use Google+ Hangouts a lot around our office because the "real" VC solution we have barely works. Anyone know if this thing has to be lo

This looks awesome, we use Google+ Hangouts a lot around our office because the "real" VC solution we have barely works. Anyone know if this thing has to be logged into a Google account, or does it get its own address of some sort? Also, is it possible to have a call between two of these devices?