Looks like Masari will be the first Cryptonote coin to gain mobile ledger support.
similar to My Ether Wallet, though fully client side (no private keys transferred, etc..)
https://twitter.com/xmranon/status/1104032702326628352 - link to the screenshot of the conversation in Discord.
2019 has already brought us SECOR / Uncle Mining, now hardware wallet support, and hopefully we'll get more info on the Blocktree Sharding proposal soon.