Well, crap. Though I'd read this... but $8.99 for a kindle version??
Cathbad, if you want a taster of the Lock In world, there's a free prequel short story on Tor.com. Just put in a search for Scalzi. I can't remember the name, though, but it's pretty cool. It's written as a sort of documentary piece with 'interviews' from health and technology specialists about the events that precede Lock In. (hmm, thinking it's maybe called something related like 'Unlocked'...)