[R] running R-code outside of R

[Michael Conklin]

Spencer Graves wrote:

>      If you want to hide the fact that you are using R -- especially
if >you charge people for your software that uses R clandestinely --
that's a >violation of the license (GPL).  I doubt if anyone associated
with R would >bother with a lawsuit, but a competitor who offers related
software might. >
>
>      Best Wishes,
>      Spencer

Do I understand the implication of the license correctly (forgive my
ignorance here).  

If I analyze a client's data using an R script I created then I can
charge the client a $20,000 consulting fee, but, if I let the client
push the button to execute the R script and charge him 10 cents for the
privilege then I can be sued for violating the GPL?  Or are my
assumptions on the first part also incorrect and R can only be used for
the free betterment of mankind?

Mike