What language are the apps for the iTouch written in?
Yeah theyre written in Obj-C mate.
If your thinking about making an app then just to let you know you have to pay a $100 one off charge and at some point you need to use a mac.
I believe the apps for the iTouch/iPhone are written in Objective-C. You can find information here:
These apps are written in objectiv C: http://developer.apple.com/iphone/index.action