1) Total number of fighters launched per turn = number of fighter bays until you run out of fighters, or bays if you are under attack and they get destroyed.
2) No, fighters can move much faster with more engines and/or more _advanced_ engines. In the demo, you are restricted to level one technology for fighters. In the full Version we will have access to all the techs. Small Quantum Engines give a +3 bonus just like ship Quantum Engines, so fighters can potentially move as fast as ships. Or faster, with afterburners.
4) Clinton's response is correct. Open the orders box and use the "clear formation" button. You can clear the lead ship, which clears the entire formation it leads.
5) Point defense weapons can target any of seekers (missiles), fighters, and satellites. I think they can also target mines if mines should appear in the combat map. The issue of multiple targets and PD weapons is unclear. As far as I have seen, each PDC seems to be a self-contained system that tracks and fires on its own, without any reference to your ship's targetting abilities. Perhaps this will be made clearer in the next release of the demo.
6) Clinton's response to this one is correct also. Your colony ship automatically loads as much population as it can carry when you ue the colonize button.
7) No, this is NOT a typo. Rocket pods are meant to be like rocket pods on RL warplanes. 30 turns is the duration of combat. You fire them and they are empty. You must return to your base/ship for a reload if you want to fire again. Look at the damage they do! Would it be fair for a fighter to have so much power as a multi-fire weapon? Note: The number of fighter bays is also the number of fighters you can _recover_ per turn.
8) Certain ship components do result in cumulative totals, but ECM and Combat sensors are not among them. The highest level of either is what you will get. Shields and Shield regenerators are cumulative, though.
Yes, the next Version of the demo is supposed to be out Monday or Tuesday. Many things should be improved, including the AI.