I noticed this article sometime back by the most excellent hacker, John Myles White ( author Machine learning for Hackers)
Professor John Fox, whom we have interviewed here as the creator of R Commander, talked on this at User 2008 http://www.statistik.uni-dortmund.de/useR-2008/slides/Fox.pdf
I also noticed that R Project is stuck on SVN ( yes or no??, comment please) while some part of the rest of the World has moved on to Git. See http://en.wikipedia.org/wiki/Git_%28software%29
Is Git really that good compared to SVN http://stackoverflow.com/questions/871/why-is-git-better-than-subversion
Maybe, I think with 5000 packages and more , R -project needs to have more presence on Github and atleast consider Git for the distributed and international project R is becoming.