To take full advantage of a single address space paradigm when building an operating system does not need any radically new ideas, but does require that one steps back from the UNIX/C mentality and considers more carefully what is really going on.
We have presented a system which provides efficient, rich sharing of text and data within a machine and provides a nice computational model which is quite natural to programmers used to an object based style. It provides type safety and flexible dynamic loading. We are using this as a means of constructing an operating system designed to support the resource demands of distributed multimedia applications.