There is a special version of MOS for the Efika that takes the tiny memory into account.
No, there is not. There is only *one* MorphOS version for all systems. There is a special boot image for the Efika, which makes installing quite easy. However you can install MorphOS on an Efika by using the standard iso and an external usb CDROM as well or update a previous install using iso boot on the big size cd iso.
MorphOS is designed to be as memory efficient as possible. Some features and applications as OWB may not work at all due the memory limitations. Also the multitasking features may be limited as running multiple applications increase the memory usage.
However the efika is a nice system for e.g. having a nice audio streaming client with a 24/7 chat and mail system. Using SSD/Cf Card as boot device, makes it completly quiet.
Geit