Officially, LPV refers to "Localizer Performance with Vertical
Guidance". Officially it's not precision, perhaps
not-so-non-precision. With horizontal and vertical accuracies in the
1-2m range, its arguably more accurate than a Cat III ILS. It does not
however,have the integrity of a Cat III. The LPV approach does indeed
have a decision altitude which currently is as low as 250ft HAT, and
the recent approval of 200' DA's will likely start showing up on
procedures next year.

Brad