Hi Pablo,
why not rewrite the Makefiles to use platforms/iOS/vm/English.lproj/$(SYSTEM)-MainMenu.xib? This would match $(OSXDIR)/$(SYSTEM)-Info.plist and mean less files had to change. We'd have to duplicate the MainMenu.xib files, one for Newspeak, Pharo and Squeak, but that's not much, and is in the pattern we already have.