> Regarding processor tech I was mainly thinking of the move to 64bit and secure enclave which completely out-manoeuvred the competition.

Why is the move to 64 bit so important, but the move to 4 cores isn't? I don't really see why 64 bit makes sense for < 4 GB RAM devices and I also bet that no one can really tell the difference performance wise.

This is also the first time I hear about Secure Enclave. TouchID isn't that secure anyway (https://www.ccc.de/en/updates/2013/ccc-breaks-apple-touchid), so I really don't care how the fingerprint is stored.