I develop some iPhone apps for clients, but I prefer working on a Linux machine. I know that there are certain things you need to do on a machine running OS X, like build the final distribution, run the iPhone app in the simulator, etc.
But I was wonder how much of say, the model layer, of an iPhone app you could build and test on a Linux system using plain Objective C and various libraries copied over from the XCode Developer libraries. To what extent is this feasible?
I don’t want to jailbreak an iPhone to do this.
How much of the Foundation API can you run via GNUStep?
This seems to be give a good answer: Starting iPhone app development in Linux?, which provides a link to http://www.saurik.com/id/4. In theory, it’s using gcc4, but the entire toolchain is a difficult replacement. But if you’re really intent on doing this, it looks like at least some of it possible in Linux.