Nintendo Wii (2006)

This video game console was launched by Nintendo on November 19, 2006. Its main competitors are Microsoft's Xbox 360 and Sony's PlayStation 3.

However, the Wii has one distinguishing feature from Xbox and PS3 - users can play video games by making use of special wireless controller called the Wii Remote. The latter detects the user's movements in 3D.

In December 2009 the console managed to break the record for best-selling gaming console in one month in the US. As of May 2011, Nintendo's device is the leading console in sales around the world, followed by PlayStation 3 and Xbox 360.

source: http://www.infoniac.com/hi-tech/top-10-most-important-inventions-of-the-21st-century-in-technology.html