Say the words Ai Pin to any tech geek within earshot, and they'll most likely regale you with tales of AI gadget infamy. The Humane wearable was (past tense) nothing short of a disaster. Not only was the pin an eye-watering $700 when it was released, but it also required a $24 monthly subscription for LTE. To top it all off, it, uh barely did anything that its founders promised.