The Xbox 360 is the successor to Microsoft's Xbox video game console, developed in co-operation with IBM, ATI, Samsung Electronics and SiS. Information on the console first came through viral marketing campaigns and it was officially unveiled on MTV on May 12, 2005, with detailed launch and game information divulged later that month at the prominent Electronic Entertainment Expo.
Upon its release, the Xbox 360 became the first console to have a simultaneous launch across the three major regions, as well as the first console to provide wireless controllers as a standard. It also serves as the first entrant in a new generation of game consoles and is competing against Sony's PlayStation 3 and Nintendo's Wii. Microsoft believes that its push towards high-definition gaming, year-early head start and its Xbox Live online gaming service will help the console be successful.
Three Halo games are in development for the Xbox 360, Halo 3, Halo Wars, and an Unidentified Halo Project.