Other sources of code for spatial statistics in
S-PLUS or R include:
Peter Diggle's
homepage including the Splancs software
the module spatial in Venables and Ripley's package
MASS
the (proprietary) module S+SpatialStats in S-PLUS.
This is an extension of the Venables and Ripley spatial module.
For an independent review of S+SpatialStats, see
Glasgow's software reviews.