Just curious -- Looking outside of R with the same data...
Stata
SPSS
SAS Enterprise Guide
MatLab (Statistics and Machine Learning tools)
Minitab
I was most curious about Minitab, but our virtual desktop access seemed to require a license. I'd be curious if somebody could fill this one in...
Summary
I see lots of different styles, some I like a whole lot better than others, but all programs tested were happy to make boxplots with 2 data values.