Demo: Our colleague in Australia controlling and talking via Angel to us in India
Angel - Is a Telepresence Robot that can be used to do video calling and navigation at the same time. While the least expensive telepresence robot in current market costs at least $2500 we managed to make it for $250. It's navigation control is done in javascript, so it can be controlled from any device/desktop browser. The dashboard sample can be found here http://angelrobotics.appspot.com . It's advantage from other solutions is the support to multiple video calling apps like Skype, imo etc.
Blog: http://akhilspassion.blogspot.com/2014/10/worlds-cheapest-telepresence-robot.html
SlideShare:http://www.slideshare.net/akhilkarun/worlds-cheapest-telepresence-robot-launched-in-india-angel-250
Info : akhil.karun[at_the_rate]gmail [dot] com