> Most indie Mac developers will tell you they don't really concern themselves with app piracy.

As someone who makes a hobby of cracking apps (I don't release anything, it's just for fun), I can corroborate this. I've never been able to find a trace of DRM in any Objective-C-based app. As far as I can tell, the state of the art for indie Mac developers is to have a method "-(bool)isAppLicenceValid" and another "-(bool)isAppLicenceOnBlacklist". Just hardwire YES and NO to those, and you're good.