I've stuck a version (5.8b7) of the cocoa based os-x squeak cog JIT based VM in my experimental folder. Please ensure drawing looks sane, and how it interacts with the mouse and keyboard seems viable. http://homepage.mac.com/johnmci/.Public/experimental/Squeak%205.8b7.app.zip I finished the open/GL tuning and based on benchmarking I simplified the explicit flush required when a Smalltalk Morphic draw cycle fails to do a flush. Lastly I cross check the source code to ensure it compiles correctly for the iOS platform. -- =========================================================================== John M. McIntosh <johnmci@smalltalkconsulting.com> Twitter: squeaker68882 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ===========================================================================