Quinn is no longer available for download in order to comply with a legal threat from Norris McLaughlin & Marcus, PA representing The Tetris Company, LLC. The Tetris Company has tried to prevent distribution of Quinn several times, and while I believe that Quinn does not violate any trademark or copyright law international or otherwise, an ongoing dispute would cost a lot of time and energy. Currently I can only devote very little time to this project, so I ceased the distribution of Quinn for the time being.