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.
It is a project to bring squeak into any j2me mobile phone capable. It is based on potato project that is bases in jsqueak a java version of squeak smalltalk virtual machine.