F# is getting a foothold at the high-end shops. I haven't learned it and can't comment on its merits.
Quote from Rodney King:
I personally would never hire anyone who can't distinguish between <i>who's</i> and <i>whose</i>.
But it would appear that some do:Quote from Random.Capital:
I personally would never hire anyone who's primary language is Java.
http://www.joelonsoftware.com/articles/ThePerilsofJavaSchools.html