Valve confirmed the in-game level editor for Portal 2, showed off two screenshots of it, and announced it will be part of a major update to the game due out early next year.
It didn't take long for Valve to confirm the rumor we reported of an easy to use level creator coming to Portal 2. The new tool will be part of what the press release terms a "major update" planned for release early next year. With it, users will be able to create both single-player and co-op test chambers for Portal 2 and share them with the community. In addition to playing these new levels, gamers will be able to rate them with a single click, implying some sort of simple community rating system will exist for filtering the newly minted levels. Judging from the two screens below, it looks like making Portal 2 levels will be a much easier, perhaps even drag-and-drop, endeavor. Getting up to speed with, as Valve puts it, "thinking with portals," still presents plenty of challenge.