But as far as contacts that are self contained, and capable of giving you a heads up display, we not there yet not even close. Cramming in circuitry and a power source into something that needs to fit comfortably on your eyeball without obstructing your vision is a very heavy lift for engineers. Let just keep our fingers crossed for a big breakthrough in miniaturization.. WhatsApp’s farewell note for 2017 is not good news for some smartphone users. WhatsApp will…