While, I understand your dislike of Vim, Vi, Nano, Emacs, etc. (I can't work in them for extend periods of time either do to hand problems) They remain essential tools for many programmers and system administrators. Sometimes, you don't want to have the file pulled down and edited in a local edit and pushed back even if it is seamless. The benefits of inplace editing on remote machines is invaluable.
I think this is a cool idea. I think it needs to be cross platform. However, it must be fully backwards compatible with the full unix toolchain to be useful. If it isn't I can't use it, and a lot of other potential users will also be unable to use it.
I love the idea thanks for rethinking the terminal.