Are you gonna include binaries for both 3.x and MorphOS platforms in the future releases? (I hope so).
This hasn't been decided yet and needs some careful planning. A filesystem is such a critical component that some serious testing should be done before a new version is released. No such testing/release planning has been done yet.
My plan is to include the PFS3 is some future MorphOS release at least. The filesystem will be inside the boot.img, making it possible to use PFS3 easily with the supported Mac systems, too. Without being inside the boot.img you would be limited to systems with RDB support or to mounting via mountlists.
Also the current 68k version functions just fine with MorphOS already, and since the filesystem is translated by the Trance JIT is likely to be exactly as fast as the native version will be.
For now I've omitted committing the MorphOS Makefiles in the SVN. This is because I have been unable to test much my new code. I wouldn't want anyone to hose their data with a buggy filesystem. Once I've tested and bugfixed the code I'll add the Makefiles. At that stage anyone with the SDK installed can build the filesystem and play with it. Obviously even then I'd seriosly recommend only doing that with some spare partitions and avoid using the SVN version in production environments.