I just wanted to let those interested in Matlab finite element development and educational environments that the successor to the SOFEA toolkit is now available at
The toolkit now provides in addition to thermal and stress analysis (static and dynamic) also sample simulations from other fields, such as acoustics, nonlinear heat conduction analysis, electrostatics, small-strain plasticity, .... The toolkit now also includes an implementation of the Nodally Integrated Continuum Elements (NICE) which are quite effective for nearly incompressible mechanics problems.
The toolkit and the accompanying textbook are open-source and freely available. The book is also available in print.