Things progressing... this weekend I've had time to code the galaxy map, the local system map, the space-combat module, the UDGs for "enemy" ships, debug some errors in the planet-name generator algorithm, start to polish the interface, add some beeps here and there... that's the good news.
The bad news are that I must finish the market logic and procedural generation algorithms, the market interface, the logic to travel from planet to planet, the docking "mini-game", and the advancement system (levels).
¡¡¡And I've only around 15Kbs free!!!