Calcaria Linux7k: Project to port Linux to a small group of palmtops. Includes PSION PDAs.
Linux VR: Porting Linux to MIPS-based NEC VRSeries devices, most of which were originally designed to run Windows CE.
Linux/a386: Port to a386, an i386 CPU simulator.
Linux/SGI: Porting Linux and Red Hat 5 to the SGI Indy machines. This site carries the FAQ and general information
PA-RISC Linux Development Project: A port of Linux to HP's PA-RISC architecture.
TurboTortoise: Linux-based, battery powered, 386 CPU, cigar box sized computer, head mounted display, may enter low volume production.
UltraLinux - Linux for SPARC processors: UltraLinux is the port of Linux to the SPARC family of processors. Provides information on obtaining and using UltraLinux.
VMELinux: Project to help integrators use Linux in VMEbus embedded Universe systems: drivers and programs to run Linux providing full access to VME environment.
Xbox Linux Project: Aim: provide GNU/Linux version for Xbox so it can be used as a normal computer. Linux should make use of all Xbox hardware and allow installing, running software from standard i386 Linux distributions. [Open Source]
ZDNet: Sony Releases Linux for PlayStation2: Linux kits are available for the Japanese version of the game console.