Microsoft has released an update for its Lumia Beamer app, and the only change is a new URL that allows the app to project a smartphone screen to a larger monitor or television.
The URL is now http://lumiabeamer.com. People who surf to that web address on their big PC monitor or their TVs will see a QR code. Lumia smartphone owners can scan that code with the Lumia Beamer app to display the smartphone's contents on that bigger monitor. It's that simple.
Thanks to Aman and yahia for the tip!