Problem with help fiels is there is no cross platform framework that I know of easy to use. Perhaps we could just launch a text file with help info?
Yeah, that's probably the simplest method. I don't see much for cross platform help. Most windows programs like to use CHM, but to my knowledge, that's not so standard in Linux. Some programs (such as the GIMP and Open Office) have their own help browsers, but that may be unnecessarily complex.
Instead of a txt file, why not an HTML file? After all, they are cross platform compatible, and are able to show a lot more a lot better than a simple txt file, and makes it possible to expand in the future, with multiple pages.