Burj Dubai topped out?

The building could go well above 800 metres

The Burj Dubai, the tallest building in the world, appears to be nearing completion as workers add an antenna with a blinking light. Samsung Engineering and Construction confirmed its workers had started adding the antenna to the structure. Emaar, the developer, is meanwhile keeping the final height of the tower a mystery, but many have speculated that it will rise well over 800 metres. [e-mail]