I bet the code that generates that list of devices was just cut and pasted from somewhere else and someone got an extra one in there with this mysterious ix.Mac.
(Though emulating iOS apps om my Mac would be cool :P) It is in my opinion, nothing but a little bug. When you go to list the devices that your application is compatible with, that is likely just an exposed extra field for if you wanted to include another device that is capable. I believe that it isn't suggesting anything at all.
