One of the neater details of the new movie (and coming TV series) Caprica, which takes place 58 years before the just-concluded Battlestar Galactica series and explains the creation of the Cylons, was the robotic butler Serge, which looks a bit like a mobile, talking golf bag:
A new robot by Anybots is not exactly the same thing, but about half of it:
This is a teleconference on wheels -- the robot can follow you around, etc., but the voice is that of the person/people on the other end of your teleconference.
Here's a video of the concept. They cost about $30K apiece. I could see this catching on, if the price were a lot lower, and people have about 15 years to grow comfortable with the idea.