I love this combination of complex puzzle solving with a dystopian backstory, this works really well.
I like how the graphics are minimalistic, simple and computer-ish, and the music fits the mood of the game perfectly.
The gameplay itself is pretty challenging. Not only do you have to figure out the right sequence of moves to get a packet of information to get to the destination, you also have to do it quickly so you can get all the relevant barriers open when you do so. There are many different kinds of blockages that might get in the way in each level, and that makes for some intensely challenging puzzles, that kept me on edge while exercising my brain awesomely.
The story, while cliché, adds a bit of, I don't know, motivation, perhaps, to the gameplay. You feel like you're solving all these puzzles for a righteous reason, which is pretty cool. For freedom of speech, and the end of government opression! o/
Seriously, now, I'm gonna go back to this last puzzle, it's hard as hell, good job!