More on that smellophone being developed in Japan to "record and play back" fragrance: it might qualify as a "smellophone" some day, but for the present, it is actually too large to be portable:
But the unit's large size is also limitation because the 96 odor-forming chemicals are contained in separate glass bottles. A more compact version, which includes only the sensors, can record smells but must be hooked up to the blender to regenerate them.
Read more in the Washington Post (link no longer working, sorry!).