sposkpat (Single Purpose Operating System: KPatience) is a distraction-less Patience card game (a.k.a. Klondike). It runs in full screen and keeps other things out of your way; not even a clock is included. It does not use an Internet connection, has no virus risks, puts hard drives to sleep for less noise and to consume less power, allows safe shutdown using the power button at any time, saves absolutely nothing, and runs completely in RAM (after loading, the boot medium can be removed). It runs from a USB drive, CD/DVD, or inside qemu.
Limbo is a PC Emulator (x86) based on QEMU for Android devices. It lets you run a Desktop OS like Debian or DSL Linux on your Android device with Network and X Windows. Limbo works with Live CD ISOs and pre-installed hard disk images created with QEMU, VMWare, Bochs, or Virtual PC emulators.
Univention Corporate Client (UCC) is a flexible and efficiently manageable operating system for PCs, notebooks, and thin clients in companies and institutions. The software contains a Linux-based desktop environment optimized for business use. It allows desktops to be adapted to hardware and intended applications. In addition, it can be managed conveniently and efficiently via a Web-based console. In comparison to other systems, it guarantees integrated administration procedures for users, clients, desktops, and permissions and effectively does away with the use of different, uncoordinated tools. It serves as a platform for access to remote desktop solutions and virtualized desktops as well as browser or terminal server-based applications.