> The nice thing about micro kernel structure is that its better protecte > than monolithic kernels.
Yes, but in terms of MorphOS, what we really have from Quark viewpoint is one single task (ABox) running on it. Almost everything that we consider "MorphOS" is happening within this task and its address space where everything can read from and write to everywhere. So as long as MorphOS/PPC is supposed to stay compatible with the past, the advantages of a microkernel won't help. That's reserved for future, incompatible MorphOS versions (on another ISA, see thread title).