Nice review.
Ledger is very nice.
But for hive you can simple create a new wallet, backup keys on clean system and send funds to that wallet. Works the same.
You can also power up from other wallets to this. And you can also delegate it if you want ( with access the "cold wallet").
But sure for the safu way and hardcore ledger user it will be really cool. I can not imagine use it for every transaction :)
