I like the lightsaber introduction. It may be better if there was an action scene previously where only blasters were used, to illustrate that they were the primary weapons in this war, but this is good too. My prequels will be largely without the lightsaber for this reason.

I like the use of ion cannons as well. It would be neat to have the gravity go off for a few seconds, to drive home the fact that they are in deep space.

Some of the exposition in this scene, like the "No way these guys are from the Republic" bit seem out of place, for someone who catches the sarcasm wouldn't explain further. It seems like you want someone who doesn't know this universe to be on board, but all of the characters so far are "in the know", and are not available for basic universe exposition. I don't know how to solve this problem, except for making one of the characters, perhaps the computer, more ignorant of the galaxy's workings.

All rather nitpicky, as nothing's really wrong so far. Full speed ahead I say!