Okay, good answers to the questions. Probably you don't have experience with these, but I have and I know there are problems.
I didn't have any problems myself. Well maybe they've made it more user friendly? If they have that's certainly a good thing.
Piru, it seems when your OS of choise don't have VMM, nobody shall use it, even with that machine with only 128MB of RAM?
MorphOS had a virtual memory solution at some point, but it proved way too slow, complex and problem prone to be worth it. If you get an EFIKA you obviously have to live with the limited amount of memory. Even if you'd add a virtual memory solution it'd be really slow on EFIKA due to limited I/O performance. Latest MorphOS release does include some changes to make more memory available for the applications, however.
My machine have only 256 MB RAM.
Why's that? All my systems have minimum 1GB.
VMM came in handly when I compiled the SAM Coupe emulator.
Hmm? AmigaOS4 would run out of 256MB memory when compiling? That's odd. Is it because of the memory fragmentation or what?
For image processing VMM is even more handy.
Most certainly with such low amount of memory. Personally I'd just rather upgrade the memory than suffer the speed penalty of the swapping.
Also, you deliberately skipped some of my points, but seeing that your OS of choise lacks them, it is quite understandable
Weren't we comparing against AmigaOS 3.x? I skipped the entries where AmigaOS 4 obviously has an edge.
If we go for MorphOS comparison there's very little OS4 does better, while MorphOS beats OS4 most of the time, as proven by impartial 3rd party benchmarks.