Problem:
Xcode cannot detect the iPod Touch while linked in, where iTunes know its existence.
Further Study:
An iPad 3 with iOS 7 can be detected.
Environment:
- Xcode 5.0 (5A1413)
- iTunes 11.1 (126) 64-bit
- iPod Touch 5th Generation (MD723ZP/A)
- iOS 7.0 (11A465)