At the moment we tested SECP256K1 for Bitcoin/Litecoin/Ethereum and Curve25519  for WavesPlatform, designed crypto-firewall login, make daemon working with the key and web interface, however there's a lot of work ahead to move from MVP to the product, but basically we confirmed the possibility and ready to ship the device in December 2018.

Each comment and  suggestion will be highly appreciated.

What about partners, we will do our best to get a kind of reward for our first 1000 clients from blockchains and projects who want their currency was used by people, who concerned about security and ready to pay for device. Some kind of hardware airdrop. By the way, with BitLock it is possible to ship device with currencies on it without the risk of being stolen in transit.