On December 8, 2011, the US Patent & Trademark Office published several patent applications from Apple that reveal their work on cooling down the exterior of their entire mobile device lineup from iPad to MacBook. Metal exteriors obviously get hotter than other substrates and Apple's latest round of inventions touch on creating "monitoring thermal zones" within each device that could drop the internal temperature as required to keep the exterior cool to the touch. This is also important because heat affects the accuracy of the gyroscope found in all iOS devices. On that point, Apple is shown to have reengineered their gyro so that it'll run cooler in the future. While we all know that Apple offers some of the coolest mobile devices in world today, Apple is now forecasting that they'll have even cooler devices in the future, literally.