I\'m sure this is simple, but how do I determine which version of the iOS SDK I currently have installed?
For latest version of MAC OS Mountain lion:
Apple Menu > About this Mac > More Info... > System Report... > Software > Developer
You will find Developer information like this:
Version: 4.6 (4H127) Location: /Applications/Xcode.app Applications: Xcode: 4.6 (2066) Instruments: 4.6 (46000) SDKs: OS X: 10.7: (11E52) 10.8: (12C37) iOS: 6.1: (10B141) iOS Simulator: 6.1: (10B141)