I think Secure Enclave and other hardware crypto technologies are massively important, especially if cryptocurrencies are to be widely used. Trezor (http://www

I think Secure Enclave and other hardware crypto technologies are massively important, especially if cryptocurrencies are to be widely used. Trezor (http://www.bitcointrezor.com/ http://www.bitcointrezor.com/) and other dedicated wallets are a decent stopgap, but I'd really like to let my phone do everything, if it can be done securely, which I think it can with the right hardware (of course auditing hardware is a lot more difficult) Hal Finney has done some good work here, applying TPMs to Bitcoin: https://bitcointalk.org/index.php?topic=154290.0 https://bitcointalk.org/index.php?topic=154290.0