ROBINHOOD Fair call, Matthew... and thanks for writing the walkthrough for other visitors! Since both of these utilities came from build-from-source-for-command-line-nerds-only projects, I think I fell into the trap of thinking "it's a GUI, so it doesn't need documentation". Of course you're right - it should have some documentation, and I'll work on that. MU's listings don't make the "requirements" section very obvious - I have listed gpsdX there (although if someone happens to have gpsd already installed, that will do).
Anyhow, thanks for the review - I'll see what I can do about documentation over the next week or so!
(Version 1.1)