Since the files are DRM-free, and your desktop iTunes is one of the 'devices' that syncs, presumably you'll have the iTunes-downloaded high-quality DRM-free ver

Since the files are DRM-free, and your desktop iTunes is one of the 'devices' that syncs, presumably you'll have the iTunes-downloaded high-quality DRM-free versions of all of your songs sitting in your iTunes music folder waiting to be copied elsewhere. I'm sure Apple has some clause in the terms of service saying that when you stop paying your $25/year you need to delete those files, but they wouldn't have explicitly said it was all DRM-free if it wasn't set up to let you grab the iTunes-quality files manually and do what you want with 'em.