What is Star Citizen? - https://www.youtube.com/watch?v=HaJx4TdshFA
A good short intro (3:27)
"What can we currently do in this game?"
Summary here: https://robertsspaceindustries.com/feature-list
Getting Started: https://robertsspaceindustries.com/getting-started
Starter guide video by BoredGamer: https://youtu.be/TlR18yxoQl8
Free Flight demo periods are often available around events, which lets anyone create a free account and try out the different ships and game modes. There isn't one active right now. The next one will probably be around Gamescom, August 22-26.
You can get a base package for either the MMO (Star Citizen) or the single player portion (Squadron 42) for $45, and from there you can add the other piece for $15 ($60 total).
Star Citizen option: https://robertsspaceindustries.com/fly-now
Squadron 42 option: https://robertsspaceindustries.com/pledge/Packages/Squadron-42-Standalone-Pledge
They sometimes have discounts available around events, in the ballpark of $10 off.
What's coming up in 3.0? https://starcitizen.tools/Star_Citizen_Alpha_3.0.0
(note: the estimated date here is just a fan's estimate based on the completion of items on their published schedule report)
"Director mode" controls: https://www.reddit.com/r/starcitizen/comments/5kr5zf/director_mode_camera_controls/
Click images for full size. These are all in-game.
Players start at Port Olisar, a station orbiting the huge gas giant Crusader (50% larger than Jupiter) in the Stanton system.
The hub in the middle of the station allows players to request ships to be delivered to the launch pad:
You go through the airlock to your ship, climb in, take off and make your way into the system.
Players reach waypoints using Quantum Drive, seamlessly travelling across the huge 64-bit map at 0.2c:
Some basic missions have been implemented:
Security Post Kareah is a free-for-all PVP station for FPS combat:
New and improved EXPLOOOSIONS
"Do we have a GAF guild?"
Yup! Sign up here: https://robertsspaceindustries.com/orgs/NEOGAF/
After applying, please verify by posting your SC username here or sending a PM to one of the listed officers.
"What ship should I get?"
For the best bang for your buck, I'd just recommend getting the base game package if you're interested in backing early. The NeoGAF org already has a ton of ships with seats to fill and loaner ships to go around to help get people get up to speed at launch.
Behold, the GAF armada:
Full size: http://i.imgur.com/liWp2qS.png