  In a few years astrometry with the venerable combination of Hubble Space
Telescope and Fine Guidance Sensor will be replaced by SIM, GAIA, and
long-baseline interferometry. Until then we remain a resource of choice for
sub-millisecond of arc precision optical astrometry. As examples we discuss 1)
the uses which can be made of our parallaxes of galactic Cepheids, and 2) the
determination of perturbation orbital elements for several exoplanet host
stars, yielding true companion masses.
