Also in 2010, the first "green" 7-Eleven store opened in DeLand, Florida. The store features U.S. Green Building Council's (USGBC) Leadership in Energy and Environmental Design (LEED) elements. Also, the environmentally-friendly design brings the store savings in energy costs. That same year, 7-Eleven went mobile with the launch of the iconic Slurpee drink's iPhone and Android Application (App). The Slurpee drink app made it easy to find 7-Eleven stores and provides driving directions. The following year, 7-Eleven celebrated its 40,000th store opening and within two years of that milestone opened its 50,000th store.