I think it would be possible. Although I've never heard of something exactly as you say happening, I have read of people who came very close to having two points of view simultaneously, though it was more like a rapid switching between the two. I think that the biggest hurdle would be the amount of concentration required to maintain to seperate selves. The amount of information required could be overwhelming. Considering that a number of people have difficulty rubbing their stomach and patting their head, sensing and controlling two independant bodies would be tough.

That's not to say it can't be done, though. In dreaming, people are always finding new possibilities; the trick is finding a technique that makes them easier to accomplish. For example, 360 vision has been done, though its something that's difficult to visualize in waking life. I suppose you could start by learning how to use two points of view, for example, first person, and that of a disembodied observer, watching yourself. Then learn to controll two things at once, by telekinesis or whatever method you prefer. Combining the two and making a few small adjustments might just work with some practice.