I get often asked by people how to "save" coins in a way that would allow them and only them to access at any point, even without having any numerical data remaining.
I came up with a little idea: have the private keys generated based on the user infos. Except for the passphrase the infos make sure the user is himself, and nobody else.
This also allows a user to put his passphrase in his will and give his crypto-currency wealth to his children.
Anyway, please discuss.https://en.bitcoin.it/wiki/ID_Backup