GameStop Corporation, whose headquarters are in Grapevine, Texas (a suburb of Dallas) is the world's largest video game and entertainment software retailer. The company operates 5,264 retail stores throughout U.S., Canada, Ireland, United Kingdom, Australia, Denmark, Finland, Germany, Italy, New Zealand, Norway, Spain, Austria, Puerto Rico, Switzerland, Portugal and Sweden, and is expected to open around 600 new stores for the 2008 business year. Retail stores operate primarily under the GameS… (More on Gamestop)