alekth on 22 October 2009
According to wiki the issue is still debated with various grammar books going for whatever they decide on, luckily, one of the big enough authorities does support my usage of the singular they:
http://en.wikipedia.org/wiki/Singular_they#Gender-neutral_language_movement
For example, The Cambridge Guide to English Usage (2004) expresses several preferences. "Generic/universal their provides a gender-free pronoun, avoiding the exclusive his and the clumsy his/her."[/quote]
