I spent a few hours this morning and updated the VM Platform API documentation at http://isqueak.org/PlatformVMAPI To capture the details of the OS-X Cocoa work. (Squeak macintosh VM 5.x) For the most part the iPhone & OS-X implementation share a common Objective-C code base because Apple uses OSX as the foundation for both devices which shares most of the functionality except for the UI components. Thus for the most part I could say see iPhone implementation details. -- =========================================================================== John M. McIntosh <johnmci@smalltalkconsulting.com> Twitter: squeaker68882 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ===========================================================================