My absolute dream is a HW wallet that stores ethereum private keys tied into a smart contract.  All of the keys have the same Hierarchical Deterministic seed which means that although all of the keys have different private keys that are not known between parties one HD seed can recover all the keys.

So then I give these keys out and
1 key can unlock > 50$ per day
2 keys can unlock > 150$ per day
3 keys can unlock > 300$ per day
4 keys can unlock > 800$ per day
5 keys can unlock > 1500$ per day
6 keys can unlock > 2400$ per day
7 keys can unlock > 10000$ per day
8 keys can unlock > 20000$ per day
9 keys can unlock > all funds

This would be my dream way to secure my funds within an ethereum smart contract and to secure my employees private keys with an affordable hardware wallet.

Then I could just give these out to whomever needs it even if they are not technical and bundle them with a usb low profile thumbdrive / keychain with etherbrowser app software to provide the interface for the non technical user and VIOLA!

Its my dream.  Hope there is a product on the market someday that can allow me to make it happen !