Are you saying that there is a long-term way to bypass Activation Lock? My understanding was that even if you bypass it locally (through jailbreak), you will not be able to use any of Apple's online services (iMessage, App Store, push notifications, etc) because Apple will not let this device register (and get the necessary client certificates) unless the original account's credentials are provided first, and this is enforced server-side and thus immune to local exploits.