> But this is hypothetical. In reality there is little motivation for apps in an App Store-like environment, which survive on customer goodwill, to want to do t

> But this is hypothetical. In reality there is little motivation for apps in an App Store-like environment, which survive on customer goodwill, to want to do this. Would anybody ever find out though? It's clear that the App Store does no real checking of the apps they accept. Since the GUID use was banned, everyone has just switched to the just-as-unique MAC address to identify devices.