I'd like to suggest the ability to have key-binding sets. For example, there could be a windows standard set, where control-a would select all the input window text, control-w would close the world, etc. All the windows-standard key commands. Conversely, a unix or tf standard key binding, where control-a would go to the beginning of the line, control-w deletes the previous word, etc.
That way, people who use windows could keep their keyboard commands, but people who prefer the other binding could easily use those commands. Or something. :)
-Azure