Summary Box: Nokia unveils Windows smartphones

WHAT’S NEW: Nokia Corp. unveiled long-awaited cellphones running Microsoft Corp.’s Windows system.

THE HOPE: Nokia wants to win back market share it has lost in the tough, top-end smartphone race to Apple Inc.’s iPhone and phones running Google Inc.’s Android software. But some analysts say it may be too little, too late, for the world’s top mobile phone maker.

THE MODELS: With price tags of $580 and $375, the Lumia 800 and 710 are based on Windows 7 software and come eight months after Nokia and Microsoft said they were hitching up.