I just finished a novel I enjoyed a great deal: The Last Trumpet Project by Kevin MacArdry. Many of Robert Anton Wilson's themes and ideas — libertarianism, immortality, enhanced intelligence, the Internet and nonviolence, for example — are developed in this new novel. Beethoven even makes a brief appearance, offstage. The book is self-published, and I admit to being surprised I liked it as well as I did.
It's been nominated the the Prometheus Award, although as yet no decision has been made on whether it will appear on the final ballot with about four other nominees. (The decision of the nominating committee judges — I'm one of them — will be announced in a few months.)
The book is available on Amazon, and also sold at the official site in various inexpensive electronic formats. There is a paperback version. Or you can just register at the site and read it free.