Background: I'm a Computer Science lecturer, and I read the blue book cover
to cover before ever setting finger to keyboard with R.
Observation: I really only use R for very simple things, but there's
practically *nothing* I've done with R since installing it could have
been done via menus. I seem to need lots of little R functions, lots
of little try this transformation plot that, fiddle with the other...
I've had a student use it, I've introduced it to colleauges, and they
would not have benefited one iota from a GUI interface.
I'm glad that the effort put into R has gone into the things it has.