You need xcode at some point to sign and publish apps. What I have setup is a continuous integration server (bamboo) on a mac mini that I tell to build the apps

You need xcode at some point to sign and publish apps. What I have setup is a continuous integration server (bamboo) on a mac mini that I tell to build the apps for testing. I haven't actually set it up for signing/publishing.. but theoretically I could have it do that as well. So I should have no problems writing the actual code in linux but then I'll wind up with a few additional steps along with extra hardware. I'm surprised that Apple hasn't locked down xcode to only be installed on specific devices, like MBPs and Mac Pros. That would be a huge slap in the face but I can totally see it happening if doing what I mentioned above becomes more popular. Personally I'd rather just code for the web and be as OS agnostic as possible, html5 and javascript