would it be possible for the FLIRC app to show a text based representation of the IR code that has been learned? Key by Key - perhaps in an "advanced" option (I appreciate the aims of the simple GUI approach).
There is a huge library of codes and code tools on Remote Central in Phillips Pronto format and I know other products have adopted that format. I think there are even tools that program other remotes using that format on Remote Central.
That way we could edit the IR codes the FLIRC responds to without needing the remote handy, and if we have programmable remotes we could cut and paste the EXACT IR code between FLIRC and the remote.