Could it be that Pioneer isn't really slowing down, but it's just the signal being blueshifted?
According to that guy it seems so. Also there seems to be this notion of "tired light" floating around in various articles trying to falsify the red-shift/distance relation. These theories seems to have
problems though. I don't know the weak spots in LaViolette's gravity/light model, but it sure was very interesting. Maybe there's some cosmological paradigm shift sneaking upon us. See e.g.,
http://www.metaresearch.org!
