The name 'antipodean' also indicates that the magazine is based 'down under' in the Southern Hemisphere, where the seasons are all out of whack. Indeed, the literal meaning of antipodes, according to Wordweb Dictionary is, "any two places or regions on diametrically opposite sides of the earth".
Those of us who live in Australia are constantly reminded that we are on the opposite side of the planet with respect to the majority of the earth's population. Just look at the way maps and globes are drawn for confirmation of this one. It's no accident that the north pole is always at the top.
Yet 'antipodean' means more than that within the context of this magazine. While Australian writers are indeed encouraged to submit material, the word antipodean also indicates an ideological mirror, such that the antipodean-ness of a story could reside within the story as well as within the author.
All of the material within AntipodeanSF, then, is selected and edited to conform to the broader definition of the word. It aims to seek out and publish short-short (aka 'flash') stories that somehow flip the mind of the reader into another realm — somewhere diametrically opposed to a "normal" point of view.
In a nutshell, AntipodeanSF wants to bring the 'other' briefly, and sometimes horribly, into view (as most good SF does).