Korean cable operator T-Broad has deployed Alticast's Windmill Ecosystem. Based on HTML5, Windmill is a TV application development platform based on open standards. It's intended to facilitate the launch companion device services encompassing smart phones, tablets, and so on.T-Broad is using Windmill to provide customized and personalized TV apps, including neighborhood weather updated hourly and provided with auto detect location; personalized recommendations based on viewing behavior, purchase history and preferences; personalized experience for each viewer; and single key "Return" function that cycles through the four most recent channels.