Bitcoin safety storage is primary goal for now, after we finish bitcoin support we will add other digital assets. If it will works with bitcoins it will works same way with other coins. Please write what other digital assets you want see first added. We plan add DASH first for fast conversion bitcoins to DASH and reverse for better anonymity and protection.
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Its will be very protected, read our whitepaper, private keys can be generated and  stored only in cold storage in offline part of program, online part is just for creating unsigned transactions with additional protection and services. As soon source code will be ready we will publish parts of code.

noted, as soon as we launch the bounty, your help will be needed

We authors of the project BTCWALL ICO please ask your questions.
UPDATE:
Btcwall.io project start their Official Bounty Program!
https://bitcointalk.org/index.php?topic=2163029