[e4m]

It's C++. I do have a GUI written using WXwidgets, but it's only 75% done. I thought I'd try to sell the CLI version first and if it is popular and pays for itself somewhat, then finish the GUI as I could then justify it with the wife.

[davidw]

My guess is that it's not so linear - you might not sell any copies at all of a command line thing, and a bunch once you get even a simple GUI on it.