Peter Orullian, senior global marketing manager Xbox Live Global Marketing demonstrates Xbox SmartGlass with a Nokia Lumia 900 and Samsung tablets at the Microsoft XBox Live booth at E3 2012 in Los Angeles, Tuesday, June 5, 2012. Microsoft says SmartGlass is planned for the fall, at the same time a final version of Windows 8. (AP Photo/Damian Dovarganes)
THE TREND: Playing video games on just one screen is no longer enough.
GAME DEVELOPMENT: The top three publishers — Microsoft, Nintendo and Sony — each focused on new ways to spread games and other content across several screens at the gaming industry's annual trade show in Los Angeles.
SLIGHT DIFFERENCES: Microsoft is tapping into existing phones and tablets; Sony is depending on its PlayStation Vita handheld device; and Nintendo is coupling an iPad-like controller with its new Wii U console.