SuperCard's Developer Edition is better suited for more complex projects, or when working with multiple projects. It's SuperEdit environment is like a project "can opener", letting you see virtual every aspect of your project in a single place. Powerful overviews allow you to move previously created windows and menus to other projects in a single copy/paste operation. And you can use this same method to re-order menus, windows, and cards within the same project, and even assign different backgrounds to existing cards.
The SuperEdit overviews let you see the big picture; a single list with all of your cards including numbers, names, card and background IDs. The same with windows and menus. Open an unlimited number of cards and scripts; simultaneously. Moving and duplicating as you see fit. Managing all aspects of your project has never been easier.
If you plan to deliver your wares to others, you'll want to make sure your users can not edit, or even "borrow" your hard work. The Developer Edition delivers here by providing a level of script encryption that prevents others from seeing your scripts.
Last, but not least, is extensibility. If you are a presenter, the Developer Edition's TransMaker utility will allow you to build an almost unlimited number of silky smooth, QuickTime based visual transitions.
And for the serious developer, the Internals Toolbox provides easy to use templates and libraries to bring Apple's Xcode into the mix. Users with experience in Xcode can compile their own commands, functions and routines that can be called in SuperCard like any other command or function.