3rd person shooter game controls

Has anyone played Dead Space for the iPhone?
I love the way the game handles and I would like to mimic the setup if i can.
The game seems to have invisible left and right joysticks, and you can tap just about anywhere to shoot.
Is there an existing prefab similar to this? or will i need to tweak a different controller setup?
Here’s EA’s gameplay demo from an iPhone 4.
http://www.youtube.com/watch?v=wQJjPVSW2T0

also, is there a tutorial out there on how to make a laser sight?