According to the report, second-stick functionality would come in the form of a $10 add-on peripheral that's currently in development. 01.net's source submits that the recent $80 drop serves a dual purpose of building interest in the system, but also cleaning out old stock. Now, assuming 01.net's report that the second stick is still at the R&D phase, it seems a bit early for a 3DS Uno fire sale, but we suppose stranger things have happened.
What's that? The whole thing sounds preposterous? Fair. But know that 01net recently reported accurately on the PS Vita and Wii U before they were public knowledge, so don't be too quick to dismiss it from consideration.