R Programming/Parallel computing with R

There are many packages and tools available for parallel computing with R. A good overview is provided by the CRAN Task View: High-Performance and Parallel Computing with R and several publications:
 * State of the Art in Parallel Computing with R; Markus Schmidberger, Martin Morgan, Dirk Eddelbuettel, Hao Yu, Luke Tierney, Ulrich Mansmann; Journal of Statistical Software 2009: JSS

Soon we are going to provide some code examples: