Hi,
after I had already tried out OMV 0.2.5, I have a trip on Freenas8, OMV 0.3 and Nas4Free made and I have suffered bad experiences everywhere. Now I stay at OMV 0.2.7.4 because it used all of my plugins (autoshutdown and minidlna) work fine. The support of OMV on the bugtracker is very good and I would like to express my gratitude.
Best wishes to the developers and much continued success.