I'm so bullish on video and the idea that you can see anyone, anywhere, anytime. I can Imagine Dr's talking to patients without the person leaving the house, or for example I'm dealing with a car insurance issue currently what if though a video chat I could show the adjuster what he needed to see? Not to mention the obvious use of families making connections. Video Communications breaks down physical barriers. It's a technical, and social evolution.
Of course all this is dependent on a few things. Facetime, Skype, gtalk, AOL, Facebook etc etc all need to agree on a common set of protocols and connection methods. We need a "DNS" for video calls. Email systems work this way, as to plain telephone networks. It doesn't matter who makes my home phone or who I have service with, I can call anyone else with a landline. We don't both need Bell South, we both don't need a panasonic phone land line calling just works. Common set of protocols and a common directory will have to happen for the idea to get traction. Service providers or Hardware manufactures can then work on providing enhanced services if you both have have an Apple phone for instance.
The other issue is just the social issue of having to look at someone. There's an awkward gaze and it seems wrong to multitask while having a conversation. However, I think social barriers will break down. Apple has helped this a lot by including facetime on the ipod touch. A generation will grow up talking to their friends while looking them in the eye. Once this happens the stigma of needing to be physically present will fade way, and going somewhere will become more rare, work will change, relationships will change and the world will change.
I'm building a startup called ServiceVines. I live far out from civilization and like it. I get really too excited over tech, economics, and food.