Sounds like a great idea, something that would add a lot of character to Arkadia. Not sure about the delivering messages part, that might just cause him to be mobbed or kept in one place all the time. If you don't post his current coordinates, it would make it more fun to search for him, you'd have to know the Ark terrain. Not sure if the platform allows a special roaming mob like that, but it would be very cool.
ye he could be lured into water or so =/ i was imagine if such small neat robot drive into the quarry market suddenly and he have the arkadia flag waveing from his back and people hear him even sing like dragosta din tei "arkadia hiii arkadia hooo arkadia haaa" lol