Playfish: Hotel City - Ghost in the Room! New feature

Over the past week, Hotel City has introduced more interactive features into the game to encourage players to stay longer per play.

Hotel City has allowed for a 'concierge' phone where the residents of the hotel can call up the players when they experience discomfort in the room, and such discomfort includes ghost!

Well the more mundane discomfort will be that the room is too hot, too cold, a fire breakout, and finally the ghost. I've not come across other concierge calls yet. It will be nice to introduce the request for food, cleaning ...etc.

By clicking on the room (the player got to first find the affected room amidst the many many rooms), there will be coins provided as rewards. This can happen to both the player's own hotels as well as the other friends' hotels.

I wonder what else will Hotel City introduce next to induce a longer stay in the game.