  The Southern African Large Telescope (SALT) survey of helium-rich hot
subdwarfs aims to explore evolutionary pathways amongst groups of
highly-evolved stars. The selection criteria mean that several hot white dwarfs
and related objects have also been included. This paper reports the discovery
and analysis of eight new very hot white dwarf and pre-white dwarf stars with
effective temperatures exceeding 100,000 K. They include two PG1159 stars, one
DO white dwarf, three O(He) and two O(H) stars. One of the O(H) stars is the
central star of a newly-discovered planetary nebula, the other is the hottest
`naked' O(H) star. Both of the PG1159 stars are GW Vir variables, one being the
hottest GW Vir star measured and a crucial test for pulsation stability models.
The DO white dwarf is also the hottest in its class.
