Weighs in at 904MB. The demo features a Tie Fighter construction facility, The Apprentice's first mission in the game. You're given full authority by Vader to take out any and all Storm Troopers that stand in your way.
As of the time of this post, the demo is not yet up on the PlayStation Store.
EDIT: I just finished the demo and figured I'd post a few impressions. POSSIBLE SPOILERS AHEAD!
Right away, the control you have over The Force is is wonderful. It is better than I imagined it would be. As the level starts, you're given a brief on-screen tutorial, and a set of corridors to test your Force Grab powers before you encounter any enemies. I tossed an explosive barrel of some sort through a window, which caused many items around the area to be sucked into the vacuum of space before an emergency hatch closed it off.
The lightsaber combos are a lot deeper and brutal than I expect as well. For a bit I found myself more interested in finding new combos than actually using The Force. You come to a large hangar with several docked Tie Fighters, which can actually be Force grabbed and tossed at enemies. There were also large crossbeams that I could bend (but not throw), and further on in the demo one of these beams could be moved to essentially clothesline incoming Tie Fighters trying to take you out.
The demo concludes as you fight a group of Storm Troopers and a MOTHER FUCKING AT-ST on a landing pad. I won't spoil this part, but suffice to say, the AT-ST fight has me counting the days until this game is released.
I am officially more excited for this game than any other game to be released this year.
Stream of a guy playing the demo.
X, X, Y, Y is nice too.
All in all great demo and very enjoyable.
I can't wait to play this later tonight.
The force is strong in this one
and I must have it.
...bitches.