Date: 2013may24 OS: Android Q. How can I access the developer settings? A. In Android 2.x the settings are found in:

Settings > Applications [X] Unknown sources Settings > Applications > Development [X] USB debugging [X] Stay awake [X] Allow mock locations

In Android >= 4.2 the settings are hidden. Go to:

Settings > About Phone/Tablet Tap on the "Build Number" 10 times and the options show up.