Postphenomenology is not a critique of phenomenology, but a practical interpretive epistemology where technological artifacts and practices are studied. These new researchers can be called ‘R&D postphenomenologists’. Over the past 25 years, the expanding hermeneutics of postphenomenology has been undertaken by classical phenomenologists, cultural anthropologists, media/communications writers and performance artists. But these face Scharff’s challenge of ‘insufficient critical consideration’ and an entire world of artifice experienced through embodied mobile devices. In response there is a ‘weaving metaphor’ and performance art with (...) the intentional use of artifice/illusion to allow for multistability and ‘implicit idealism’ in a complex and unpredictable sensory world of ontological experiments and case studies. Allowing for multistable interpretations, variational theory, and the study of illusions, technoscience researchers and users of emerging technologies can develop heuristics for interpreting the world through devices, if programmers of these technologies make the hermeneutics accessible and visually interpretable. Both groups must expand the purview of the ‘readable technologies’ of Patrick Heelan, allowing for an expanding material hermeneutics of postphenomenology that is poised to become a praxis of perception for users of ubiquitous digital technologies and devices. (shrink)