Re: Very impressive.
Measuring star positions to determine your position in space won't do it. Certainly not yet.
The GAIA astrometric satellite will, we expect, get parallaxes and positions to (roughly) the 20 microarcsecond level. That involves multiple measurements over a multi-year mission, but let's say a future instrument could get to that level of precision. Let's also say that you have some stars within, say, four light-years; those are the reference points from which you're measuring your position. In that case, your positional accuracy is the distance subtended at a distance of four light years by a 20 microarcsec angle, which is... um... I'm getting about 4000 km. Better than I would have expected, actually. But the pulsars would still be the way to go.
Sadly, interstellar travel is still a ways off. But I _could_ imagine optical methods working within the solar system: image three asteroids with known positions (quite well known already, and about to become better due to GAIA), measure their position relative to background stars, and you could have positioning competitive to pulsar timing methods.