SBI - A Small Bytecode Intepreter to run programs on an AVR from SD
...The programs are a sort of bytecode, and they are interpretated at the moment. So you don't have the better speed, but for now this is the only way to run programs from RAM (or SD) on Harvard architectures.
Note that as of release 0.4.0 just the base programming language is provided: no support for programming with the application frameworks such as Series 60/80/UIQ is provided, and neither are phone APIs (IR/BT/SMS/...) supported. Volunteers welcome.
Hummin is open Smalltalk-80 implementation with ANSI Smalltalk compliant
class library. It is file based and therefore modular. It could
be used for object oriented scripting as well as for rapid application
development.
Squeak is an open, highly-portable Smalltalk-80 implementation providing platform-independent 2d and 3d graphics, sound, and network access. Active development of Squeak is going on elsewhere than SourceForge now, meet us at squeak.org.
Pocket Smalltalk is Smalltalk-80 for small machines. Currently we support PalmOS with a virtual machine. We are looking for ports to other devices. PSt consists of an IDE (currently for Win32), which generates executables from Smalltalk source.