HoodooYabuli is a factory firmware based on iOS 5.1. It is able to run on iPhone 3Gs, iPhone 4 and the iPod Touch 4G. Due to the fact that it contains kernels for other devices (something which is common for most SwitchBoard filesystems) it can possibly be installed onto other devices.
This firmware was leaked most likely as a root filesystem dump. IPSWs for the iPhone 3Gs, iPhone 4 and iPod Touch 4G have since appeared and can be restored to these devices via bootrom exploits, such as limera1n. The firmware also appeared as an encrypted restore bundle for the iPhone 4, which keys were eventually found for.
This build contains the following applications applications launched through SwitchBoard.app: