Stefan--
>A console
>window which allows to evaluate expressions without doIt menu but just by
>pressing return would be also useful.

You already have this facility in MorphicWrappers, where the console is the
World!

>The browser needs wizards to create
>classes and methods.

With MW you don't need a browser (almost), just write the name of the class
and press enter; then edit the methods choosing them form the
doubleClicMenu.

You can download the last version of the MW package from:
http://www.dm.uba.ar/MathMorphs

Saludos,
Leandro