IOS 4.1 build 8B117 (InternalUI)

iOS 4.1 build 8B117 is an InternalUI build of iOS 4.1. Interestingly, along with the internal applications, SwitchBoard is present in this build. This build will look like a factory iOS build if SwitchBoard is started. Also, attempting to launch SwitchBoard by tapping its icon in SpringBoard will result in SwitchBoard crashing on launch.