A more thorough explanation of the advances in swim technology at work in Bejing than "they have those fast suits now."
I appreciated the list linked above because it eases some of my fears that Phelps et al. will get nailed for doping or something later. I don't think they will since they undergo daily (multiple-daily?) blood tests to ensure they are clean. I may google around later for more on the science of the pool depth, width, and lane dividers' effect on times.