Smart Sign is a special app that shows product specs and is installed on the "Smart Sign" iPads inside Apple Stores. This app can’t be exited with the home button. There is a gesture to quit apps on "Smart Sign" iPads which is shared on a need to know basis among employees. The gesture does not return you to the home screen but returns you to AppleConnect. The app itself is not what disables the home button; it is system-wide and enforced by SpringBoard. The key in com.apple.springboard.plist is SBStoreDemoAppLock to enable this functionality.
- Cult Of Mac: How the Smart Sign iPads at Your Local Apple Store Actually Work
- iDownloadBlog: An Exclusive Look Inside Apple’s Smart Sign
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