After we received email from user who accidenally deleted his wallet after reinstalling of the Windows we decided to improve our wallet with protection from such situations because we try to listen to our users.
As you may know, Karbo wallets have two keys - private spend key and private view key from which 2 public keys are generated and form an address. That's why our address is so long. Both these private keys were generated independently by default thus creating nondeterministic wallets.
New client sofware versions will be creating deterministic wallets similar to Monero. I.e. will randomly generate only first private spend key. The private view key will be generated from first one. Private key can be represented in the form of mnemonic phrase, which user has to write down and can later restore his wallet from paper.
Not to be confused with classic paperwallet - there is also phrase, but that phrase is for restoring paperwallet (must be entered on site not in wallet). Paper wallets can be imported into clients as usually - by importing of private keys.