ShellFish developer here. Recently libssh2 1.9 was released with support for modern ssh key types, but I need to do some extra work to calculate public key from private keys that depend on each key type.
I just really wanted to release a first version and more key types will be coming soon.
I have developed an application that allows accessing git repositories on iPhone or iPad.
On its own it can browse your files, make edits, commit these edits and push the commits back to your remote to take full part in a git work-flow.
But the interesting part is iOS 8 advancements such that other apps will be able to open and edit files from your repositories. I hope that git support combined with specialised editing apps (made by other people) will open up what kind of work can be accomplished on iOS.
Sign-up for the beta and you will get download instructions ASAP.
I just really wanted to release a first version and more key types will be coming soon.