These are a few of the tools in the toolbox.
iOS SDK, Xcode, Interface Builder, Instruments, Git, Tower, Photoshop, MS Project, PlanView
Cocoa, Objective C, Unified iPhone/iPad binary, threading/performance tuning, MapKit, Navigation Controller, Reverse Geocoder, Accelerometer, Custom TableViews and Cells, complete comprehension of memory management, frequent interaction with version control (Git), web server communication, strong working knowledge of App Store acceptance standards, Instruments for leak detection, Chipmunk physics, Cocos2D.