Just a random thought on security.One of the issues that make me feel insecure about wallets is the fact that you have all of your holdings centralized onto a single program. Likewise for currencies that provide key phrases or private key for access to apps that link to the blockchain, your assets are still readily accessible to an unwanted user should the key be compromised.In both instances, your assets are vulnerable to a single transfer to flush out your holdings were your computer or phone to become compromised.On the other hand, while its often seen as a disadvantage to have your holdings locked away (unable to be transferred at a moment's notice), Steem Power does provide an unofficial pseudo-vaulting service by requiring a multi-week withdrawal period. If my phone or password was ever to be compromised, at least I would have some time to react to the breach.Just a thought to consider.