Soon You'll Be Able To Create Your Own Puzzles In Portal 2.

Valve's concocted the natural solution to your content hunger, by announcing a map editor is in development for the popular first-person puzzle title.

The map editor will allow players to easily create their own single-player and co-operative test chambers, and then share them online with other players. Creations can be rated by the community, with the best bubbling to the top. Think of it like LittleBigPlanet with a more clinical artstyle and GLaDOS telling you off.