GNUton The GNUton project is a re-implementation of the (defunct) Apple Newton platform. It consists of the virtual machine, storage architecture and templates for GUI and general OS features. It aims to support execution of existing pure NewtonScript packages. http://gnuton.sourceforge.net/

cpc4x An open source CPC emulator for Linux/Unix by Ulrich Cordes. http://ulrich-cordes.gmxhome.de/cpc/english/cpcemu.htm