I haven't seen it mentioned here, but there is a 2 page article in the latest (May 2008) issue of BoatU.S. magazine, published by the Boat Owners Association of the Unites States, regarding "Versatile Submersibles," in which PSUBS is prominent. It is authored by Jill Culora.
There is particular reference to (and quotes from) both Alec Smyth and Jon Wallace, with photos from the PSUBS convention in Raystown Lake, PA., on pages 22 and 23. George Kittredge is also featured.
Stan Freihofer
2-man ambient dry (in process)
Ft. Lauderdale, FL