Robert Scoble talks about the capabilities of three services on TechCrunch. When I gave my talk on Millicomputing at the BIL conference, Robert was sitting at the front streaming my talk to Qik from his cellphone.
In the near future I think this will become an important area, as continuously streamed video conferencing becomes ubiquitous, and adds two-way support. The only limitations that prevent it are network bandwidth, battery life and the software that manages the service. Network bandwidth is already sufficient, battery life is improving rapidly, and these three companies (http://qik.com, http://kyte.tv, and http://flixwagon.com) are competing to build the software services that will eventually implement the features I have been talking about. These services are working towards computer assisted telepathy.