terminal-based SSH manager

I'm working on a tool for handling SSH stuff

So far it can store an address book of servers, copy ssh public keys to remote servers, sshfs mount remote homedirs, and it sorts a list of servers by the time last connected

What other functionality should I add? am i just wasting my time?

nice. things I would add:
1. automatically deploying and running scripts on all/selected servers (so it would be a non-shit, non-enterprise, unixy configuration manager)
2. making backups with rsync
3. port knocking/SPA (not necessary but might be nice to have)

also, what >>2 said. also also, I hope it runs in terminal