I am curious. Linux has wine, if installed, to run some of MS window's programs and windows has cygwin, if installed, to run linux apps.

Since Apple uses Darwin which I believe is a unix-like operating system, can linux run Apple programs using some kind of program? Thanks

Not as such if you can get the osx source you may be able to convert, depends on how many osx specific routines are used, ypu could I guess use qemu as an emulor but you would need a legit copy of osx, either way would be quite difficult if not nearly immposible

Yeah, my gut feeling was probably not. I just had to ask to make sure.

I did heard of the hackintosh project from this wiki page but I don't know is this project easy or difficult to do.

This iz more a project to knstall osx on non apple hardware, which apple doesn't like or technically let you do, if I remember rightly their eula actually forbids using osx on non apple hardware, don't know now leggaly binding that is though

http://www.darlinghq.org/ Check that out.

Never heard of this looks interesting though

I think this question was asked a while ago and I looked into it. While on the surface you'd think that a bsd based OS could be easily ported to linux you'd be wrong. Seems many people have looked into trying to get this working in native form or simple porting. Apple put in a number or road blocks that are easy to get past.

There are plenty of web pages devoted to getting MacOS running in a vm and I know they work. I did it but never could find a reason to run MacOS so I deleted it.

Are there any killer apps on Mac that can't be duplicated in some like software?

I think that it would be a very pointless quest. You'd essentially be trying to replicate the OS/X operating environment and Apple's very substantial (and, very proprietary ...) support libraries, not to mention the hardware it runs on.

"And-d-d-d-d... for what, exactly?" It's cheaper (really!) to buy Apple hardware if you need to run Apple apps. I think that it would be realistically impossible to get any sort of return-on-investment for that effort.

(And, quite frankly, I'd say the same thing for Wine. If you need to run a Windows app, really the best way to do that is to obtain a licensed copy of the Windows OS and run it in a virtual machine. Or, for that matter, to go down to any store in the land and buy a gently-used laptop that has Windows installed on it. Then, get straight to the (meals-buying?) work that you have in mind for it all. The project is interesting, and rather successful all-in-all, but really not (IMHO) practical.