I think it'd be easier to just implement better keyboard support in E.G. Acme and, to a lesser extent, the terminal. :)
Side note: Inserting text using a debugger shouldn't be necessary. Everything really is a file, including Acme's windows and their contents (which is pretty cool).
Ok, what if all the programs had an file, like a port, where it could read and write messages encoded in a high level dynamic language, maybe like Lua, or Arexx :) ?
