The Bitcoin network is hard to change, and that's mostly a good thing, but it also makes certain upgrades very hard. Assuming there absolutely had to be a hard fork, what would you like to see added to Bitcoin?
I'd like to see it hardened against rainbow table attacks so Brainwallets are less risky.
Would the easiest way to do this be with a website like bitaddress.org implementing this hardening clientside.
something like Sha256(bcrypt(Passphrase))