SRAM cells take 6 transistors per bit. A long time ago, a company called Mosys claimed they could replace this with just 1 transistor, also claiming it was as fast as true SRAM. Not only that, but 2001's GameCube contained mostly this type of memory, 24+3=27 MB out of 43 MB.
In 2006, it resurfaced in the Nintendo WII, this time one source mentions it had 88 MB of 1T-SRAM out of 104, but most mention only 24 MB, like the GameCube's main SRAM.Since then, I can't track this technology's trail anywhere. Has it been used anywhere else?
The idea has resurfaced again in 2016, this time clearly showing it as being a true SRAM, but nothing seems to have come of it. Even though SRAM cells remain a large and expensive part of CPUs, and, as X3D's success shows, a very useful memory even in bulk, where 1T-SRAM appears to have shined.
P.S. I guess this is cross-topic with Electrical Engineering, but I'm also interested in the history of this technology. Where was it first used, where else was it used, any indications on whether the claims of being as fast as true SRAM were simply false, or if something else doomed it?