50 Voices of Disbelief is officially published in the UK (and most other places) today, 9 October 2009. Some people who've purchased it already have copies. In fact, Steve Zara has already read it, and reviewed it very positively (and I've made a comment that may or may not be of interest).
As a matter of fact, all the reviews so far have been positive, but I'm sure that that will change as more reviews roll in and we get some controversy. For now, I'm enjoying the feeling of having a new literary baby now finally out there in the big world making its way.
If Udo is reading, drink a glass of Champagne today, mate! You deserve it.
Edit: 50 Voices of Disbelief also gets a mention in this discussion of Victor J. Stenger at The Open Parachute.