It's not just about adding a touch screen: Product design, supply chain, and manufacturing concerns for CP firms. Read Part 1 in the series on CP firms pursuing smart tech here. Earlier this year, Google ceased production of its smart glasses, Google Glass, launched in 2013 as a breakthrough product that allowed users to access and navigate wireless functions via a frame and clear lens designed to augment the user's frame of sight. Critics at the time noted issues with the design and cost.