Against Gravity is a good futuristic action novel, but the tagline "Live long enough and this could be your future" on the front cover tells me Gibson intends this novel first and foremost as a comment on the world we live in today. You may already have spotted the subtle parallels. But apart from the obvious -- and it was worth Gibson restating it, mind you -- I'm not sure there's much political comment to be found here. Perhaps the main point, beyond the Bush-analogue and the WTC-analogue and the Guantanamo-analogue, is a religious one: that people can (and do) believe any number of things about the same phenomenon, but they could all be wrong. Question those beliefs, people.
I got an email from Keith Brooke informing me a review of Against Gravity, written by John Toon, had just been posted up on the infinityplus website; it's a good review all in all, and one I thoroughly enjoyed reading. Thanks Keith (and John). From the review: