> Touch ID is going to massively reduce the number of totally unsecured iPhones that require zero effort to access.

I feel like we just went through this very same drill with the Chrome team refusing to hide web site passwords behind a master password, something that all browsers, except Chrome, support. Given how stubborn the Chrome team has been in its handling of this situation, I think fighting that TouchId battle is going to be equally challenging.

Common sense is, sadly, not very common, not even among the security circles.