The first review for Against Gravity is up on the net, and it's a good one (phrases that stick are 'pretty damn good' and 'superb ending'), which is heartening considering there were times while writing it when I felt like getting a bit Misery on its ass with a sledgehammer and a block of wood. But it all came out all right in the end.
Of course, this is all nothing more than standard second book syndrome. If that doesn't make sense to you, trust me, you have to be there to know what it feels like. First books are always easier because usually you're writing it without a contract, so really there's no serious pressure involved. It's after you've sold it and have to write a second that the pressure really starts to kick in.
Worldcon is barely more than a week away, and I've taken two weeks off work in order to a)prepare b)be there and c)recover. Unfortunately, Cheryl's review might be the only one for a couple of weeks, since it turns out there was a delay down at the publishers, and they've only just managed to send out the review copies ... more than a week after it's appeared in the shops and on Amazon.
So if you're a reviewer and were expecting it (like Rick Kleffel over at trashotron.com, who mailed me to let me know he hadn't received anything), this is why it isn't there yet.
Fortunately, they've moved the official release date of AG back by about a month (apparently this makes sure it gets reviewed by the usual media and fiction magazines): so in fact, it's not out until August.
Even though you can buy it.
In your local bookshop.