That would be fascinating!
I assume it would be some sort of video call though? Anyways to just have voice? I would be very interested in something like this if anyone got it working and wouldn't mind sharing with me roughly how they did it
This is how I'm planning on doing it. Still have a lot of research to do to get it setup. It says it runs on the iPhone, so I assume it will run on the iPad as well?
http://www.cisco.com/web/products/voice/jabber.html