The news now is that the thesis has been published. You, too, can read all about the population of tiny asteroids and space dust that cause the Zodiacal light. The completed thesis appears as the book "A Survey of Radial Velocities in the Zodiacal Dust Cloud" (Springer and Canopus Publishing Ltd., 2008), available at Amazon for $71.96. May was awarded his Ph.D. last summer and accepted a position as chancellor at a British university in November.

http://science.slashdot.org/article.pl?sid=08/08/02/1938239