How to send Sumokoin from a wallet I create in wallet.sumokoin.com ?
You'd have to download an actual wallet (see sumokoin.com for official/direct links - do not click on links by 3rd parties). Once you have it installed, you can enter your mnemonic to restore (recreate) your paper wallet.
...and since that means that the newly restored wallet would then be exposed "online" because the official wallet is incapable of cold wallet/offline signing features, I'd take necessary precautions to minimize vulnerability of your "online" wallet.
Yes true. I would love to see a wallet like Armory with watching wallets and similar security functions. Curious if the devs have any plans on coming up with something like this.
Believe me. I've been asking them about it for a while now which should already be a standard crypto wallet feature nowadays. Monero GUI wallet has such feature but Armory was I think the first one to implement it way back then. The last reply I got from the usual suspects (cheerleaders) on here was: "No cause you ve asked for it. If it wasnt for you we would have done it". So yeah, a very mature, well-balanced, professional bunch /s.
https://bitcointalk.org/index.php?topic=1905086.msg33575679#msg33575679So I've seen some of your posts and interactions with others on here and tbh I thought it was an internal joke or something. I did see this comment:
Does this update happen to include the cold/offline signing GUI wallet feature as indicated by any chance?
No cause you ve asked for it. If it wasnt for you we would have done it
So @sumogr in all seriousness can we expect any of these features soon?