Great game, but there are a few refinements which I think would make it a SUPERRB game:
1. How about a virtual calendar, so we could see time passing and then know how long our islanders have been there.
2. When clicking on a villager, it would be great if we could see not only the name and occupation, but also gender and age, without having to go to the details screen each time, like it would avoid trying to mate villagers of the same gender, or underage villagers! (some of those young chicks, man...!)
3. And I'm frustrated with the ending - I'm trying to train a Master Scientist because I think he/she is the only one who can solve the mystery of the cave IF there's a mystery to be solved...the Golden Child ain't helping here either. But I can't get any villager to take enough interst in research to stay at the table...! So, is that it? Surely not...???

The mystery of the cave is not a master scientist... just wait awhile - assuming you've got the butterflies and magic fruit (hope that doesn't give too much away and spoil it for you)

Second thought - by "solving the mystery of the cave", I asumed you meant the boulder! The post above was about removing the boulder.