Showcase at http://formula-editor.appspot.com/ is updated.
Sources are uploaded to repositories and to
http://gwt-equation-editor.googlecode.com/files/FormulaEditor-0.0.5a.zip
You can insert variables, +-*(), divisions and edit powers. Deletion
of elements is now supported. Undo/redo features work for everything
but divisions. Still no insertion of the functions and no code
completion.