Hi guys. For those who had a crash with the VM I attached previously, you can try now with the just released Pharo VM from the Pharo CI server:
This VM has already included the headless support and should work for OSX >= 10.6. The only change is to set the flag LSBackgroundOnly of Info.plist to true.�
If there is some problem, please let me know.
Esteban: thanks for fixing the VM built and for integrating my changes :)