Social Empires Mobile was released sometime during October of 2012. There are some exclusive features about it such as exclusive mobile barracks.
Elephant Rider Barracks: Builds Elephant Riders
Black Ninja Barracks: Builds Black Ninjas
Troll Archer Barracks: Builds Troll ArchersWinged Knight Barracks: Builds Winged Knights Winged Knight
The Bahamut Nest is a mobile exclusive feature which allows you to get Bahamut Draggies, and Dragons. The following is what you can obtain so far:
Red Bahamut Draggy