Saltation defies the orthodoxy of evolutionary theory, but there are some prominent proponents, including Carl Woese. Polyploidy (most common in plants but not unknown in animals) can be seen as a type of saltation. Polyploidy meets the basic criteria of saltation in that a significant change (in gene numbers) results in speciation in just one generation.
It is a popular misconception that punctuated equilibrium is a saltationist theory, often mistaken for Richard Goldschmidt's hypothesis of "Hopeful Monsters. However, punctuated equilibrium refers instead to a pattern of evolution where most speciation occurs relatively rapidly from a geological perspective (tens of thousands of years instead of millions of years), but through neo-Darwinian evolution, not by saltations.
In popular culture, a form of saltation appears to have emerged from misconceptions over currently accepted theories of evolution (the X-men and its various spin-offs being the most egregious examples).