I'm enamoured with them as the web enabler. The other side serves this content to us. Over time, I see a computer that will be with us that is our memory assistant that's seen and heard everything we have and can recall it for us. This looks doable within a decade. And of course, there's way out stuff.
Presence is the feeling of being together.
I believe that most everyone will end up doing a lot of telework. I believe most of the impediments are within the organizations and workers. The managers like to be able to physically see their empires and to know that they are at their desks appearing to work. Or surfing the web. The appearance is work.