Like Mitt Romney’s move to the center, Google continues its move to make Android more appealing to mainstream consumers. Google has hidden the Developer Settings menu in Android 4.2. Access to these settings is essential for developers and the relatively small percentage of power users looking to try out the latest Android advancements ahead of schedule (Android Sphere for the GNex anyone?) or jump on a popular custom ROM like CyanogenMod. For most smartphone users, however, it’s a menu they’ll likely never access… on purpose.
Android Central has discovered a relatively easy way to bring the menu back. Go to ”About phone” and tap the “Build number” line seven times. You’ll restore the Developer Settings menu and will get an extra life the next time you play Super Mario Brothers.
Source: Android Central