Indeed, it can. When you are waiting for the only company in Poland shipping CF <-> IDE 2.5' connectors to phone you with good news that they have it and you can come to grab it now. Yesterday i've phonned them (luckily boss of this company is some friend of mine) if they have it - maybe they do, the answer was, but since they need to make the end-of-the-year-usual-magic what all companies do exactly in the very perfect moment you deadly need them, i am to phone tommorow. So i did. Wait a second, i've heard, we will check it and call you in minutes. ok - after next 15 minutes they indeed called me with an information they have it - but i have to be there before 1 pm. it was 11:55 o'clock and i had to drive 45 km to the city plus some usual around the city things. It's too long to describe how do you feel speeding throught the city over 130 km/h and above 160 km/h outside it, breaking the law in every possible way. Finally - i was there. It took definitelly too much time to go throught the security of this building (it's a high security building) but i've got it! Another speeding - this time home, some non-computer activities and i could put it inside of efika! I have to say it matches perfectly. It's a nice one pcengines converter, which fits exactly like it should. Even the holes are aligned like they should be, so i can mount it and secure properly. After some parted joy (mklabel amiga, mkpart boot 128 MB and root all the rest, mkfs.ext2, blockdev --rereadpt), i could copy my efika system (was much faster than i thought it would be) and boot from it. Now Efika has above 2:40 hours of uptime, average load is below 0.10 (it's playing some music while i'm writing it, some irc jerks from ##gentoo-pl are calling it efika-love, let it be;) and i cannot see any problems. I'm using tmpfs for /tmp, /var/tmp, /var/run and /var/lock to avoid creating temporary files on a flash (even if it does have some internal wear leveling mechamism).
pictures below:
prepare for the moment

said connector

efika hardware is now complete!

i had to wear it when in the building

actualy i was just holding it in my hand ;)
now i wonder what's the best filesystem for such a device - it needs to have small cpu usage, small memory demands, perform not bad, be rock solid even in a case of sudden power loos - and i think it should not be journaled one.