All of the above can be done relatively easily by any individual. And like I said, the Revolution guys aren't all bad. It's really just revo R that I find uncompelling. Even that wasn't always true, but Hadley and Rstudio have buried everyone else as far as dev/write up/presentation integrated environments go. Plus I like Hadley and Winston and joe better on a personal level. Nothing against David and his coworkers, they're great too. I just find it easy to connect as a developer and statistician with the Rstudio guys.