[Mikeb85]

Why not? Every science/statistics/math/finance/economics person I know uses R. Lots of slightly more 'casual' users, but it's gone completely mainstream. Universities around here have it installed on most lab computers.

I'm also pleased to see Fortran is still going strong. Great language for crunching numbers.

[tavert]

Modern Fortran gets a bad rap, it's suprisingly good at what it does. I wish there were more than one production quality open-source compiler though.