Well, I usually try to stay far away from any Items that use divination to good effect, however, you did say that the map could be ambiguous.
Plus, the map could think that the PC's really need some patience (instead of the sword of death that they keep asking about) and send them to a really big library. This trick would allow a GM to easily avoid letting the players find anything anywhere. The Map could decide to change it's mind at any time for any reason.
All in all, I like it. And I give it a plus .5 for taking a stupid thing like Dora the Explorer, and making it into something cool like this. Go to Comment