(TrendHunter.com) The Glowstone Smart Mug 2 builds upon the intelligent features introduced in the first iteration of the smart mug and it introduces improvements to help enhance the enjoyment of hot beverages. The... (TrendHunter.com) The Glowstone Smart Mug 2 builds upon the intelligent features introduced in the first iteration of the smart mug and it introduces improvements to help enhance the enjoyment of hot beverages. The...