I thought of an interesting idea to innovate the use of the iOS features. There's going to be buried relics scattered around the map (probably only 1-3 per map) and you'll be able to dig the grass tiles to try to uncover it. There will be a character with the ability to detect if the relic is nearby in-game. So theoretically you'll scout the map with him in your group and the iOS device will start to vibrate if it's nearby (I'll probably add thought bubble exclamation points for iOS devices without vibrate). That will give you a good indication to start digging around that site. If you find the relic, it'll give you a gold multiplier so you can earn gold faster. Here's a screenshot of the frame sequence when it becomes unveiled:
(It's an ancient clock representing faster gold income for your village)
The relics and gaining gold faster was a feature from the game "Age of Empires II". I thought I would add some more features to make the concept seem more interesting. Tell me what you think.