I have all three Zenonia games. Haven't finished a single damn one of them. This 'action' RPG stuff just isn't for me, I think.
I found Inotia 3 even less engaging. If you like WoW-style questing and grinding, it's as good a time sink as any, I suppose.
Geez, I'm going through all the RPG's I've really enjoyed and not a damn one of them is on Android. No recommendations here, I guess. :-/
Edit: They aren't really my style, but apparently Order & Chaos and Battleheart are on Android now. Some people love 'em to death. I'm all about more strategic turn-based gameplay, myself.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.
