Cant say how practical this would be but...

Add a simple text editor to the login screen tied to the cfg / ini and log files.
For some this would make access to the critical files much easier.

A lua aware editor would be even better....

+ a hell of a lot

The notepad should also have an "activate config" button, so when saved, the config/wgaf file is immediately loaded. Great idea man, especially on mobile devices where editing the configs can be a real PITA.