The next step -- due "in a few days" -- will be a wide release of the Super Meat Boy level editor, initially in the form of a public beta. "The editor will allow people to basically create anything they have seen in game and upload it to Super Meat World with the click of a button," said Edmund McMillen via email. "Users will also eventually gain the ability to create full chapters that can be uploaded and rated by other users."
Here's the best part: Once the editor is deemed "stable," Team Meat will enable "The Unknown," a free feature that automatically stitches user-created levels into an unpredictable, sadistic gauntlet of meat-mincing grinders. Do try to curb that public display of excitement (your Stockholm syndrome is showing).