Is it a sign of the times? One of the first reader reactions came in by twitter, from someone who read the book on the plane flying to Japan...
Interesting - and encouraging - is that several people have remarked that it is by far the best book I have written so far. It is one of the things I strive for all the time: to make the next book better. And it is lovely when I think I may have succeeded, because it isn't necessarily a given by any means.
(And my editors say that Book 2 is even better than Book 1!!)