They distinguish between running the application and opening a document or view. Not all applications want or need to have a document or view (onto a document or otherwise) open at all times. Some of the demo programs actually demonstrate this. Eg, iirc !maestro can keep playing with window open or closed.
Mac OS X has a variant. There's a little dot below the icons that indicate that the program is currently active in ram versus just visible in the dock.
Ps: wrt the demo programs. Did you notice you can eg. 'Save' files from !Edit and !Paint directly into !Draw (and IIRC also back into itself) ?
Mac OS X has a variant. There's a little dot below the icons that indicate that the program is currently active in ram versus just visible in the dock.
Ps: wrt the demo programs. Did you notice you can eg. 'Save' files from !Edit and !Paint directly into !Draw (and IIRC also back into itself) ?