I believe that's only for the Google Summer of Code if you live in the US. IIRC, GSoD participants do not receive a stipend.
It's not much, particularly as this seems to be out of the holiday season (Sep-Nov) which makes it hard for students. That said, in much of the world $2k a month (ie $24k pro rata) is a reasonable salary for writing documentation. There are worse paying graduate jobs.