XZ81 : Sinclair zx81 emulator for Unix X-Window system

  Russell Marks (russell.marks@ntlworld.com)

PSPZX81 : Porting on PSP

  Ludovic Jacomme (zx81.zx81@gmail.com)

GP2X-ZX81 : Porting on GP2X

  Ludovic Jacomme (zx81.zx81@gmail.com)
