Why not calling "PharoS" as "PharoWithoutJit" ?
Marketing.
Pharo does not change his name when running and then you would have a dock, main window, etc. exposing a horrible technical name.
Exposing technical details as names can look cool in first instance, but the same as the java vm is not named �hotspotJitWithALotOfDetailsWhichIDoNotRemember� and the python vm is not called �pythonBasedOnLLVM�, there is not real reason to use a technical name for us either.
so� we took the names Pharo and PharoS because people should use regularly Pharo, and when they do not have another chance, a PharoS (which can be interpreted as a �Pharo Stack� if you know the technical details, but also as �Pharo Small� or �Pharo Stripped� if you are not� and you have a but of imagination :) ).
Esteban