_Rainbows End_ is less fun than his other novels, but it deals directly with near-future issues in a way that only a few other SF authors are doing well (Stross, Stephenson, recent Gibson, and who else?). It changed how I think---much more than did, eg, _A Deepness in the Sky_. In terms of relevance to the times, I'd rank it next to _True Names_.
Of course, that mean it was probably only in the top 10 SciFi books of the year instead of indisputably the book of the year.
Also, ugh eugh Papyrus in the site header, argh.
But, oh well, the fact that Vinge uses Emacs is interesting although not surprising given he was a CS teacher.
The Morgan & Stephenson books might be fantasy and historical fiction (?), but if everything lives up to its promise this could be the best year for SciFi/Fantasy since 2000, when Vinge's "A Deepness in the Sky" beat Stephenson "Cryptonomicon" for the Hugo Award.