I started a small survey in the LinkedIn group "The R Project for Statistical Computing" about #RKWard. The results so far:
Turns out that 83 % don't know it and
circa 8 % use it.
There were 139 people who participated in the survey. Given that RKWard is among the oldest #rstats IDEs and GUIs [1], it is somewhat surprising. I suppose we should improve the advertising of our tool.