I am not sure this is the proper place to ask (and I am not sure this is the smartest question

Thanks!
There's Mac-On-Linux http://mac-on-linux.sourceforge.net/ for PowerPCI am not sure this is the proper place to ask (and I am not sure this is the smartest question  :) ) but, is there a project similar to wine that allows a user to run an OSX software on Linux?
No. Think of what Wine is - it's basically *reimplementing Windows*.There is GNUstep, which contains libraries similar to OS X's ObjC ones, but there isn't anything giving binary compatibility, AFAIK.