You didn't misread, that's the name of an official Esri blog entry, Going Open-Source with Esri.
From the entry: "We’ve also been a big supporter of the open-source community, providing code and sponsorships for efforts relevant to the users of our system. Popular tools such as GDAL/OGR, PostgreSQL, Dojo, MongoDB, and others have all been actively supported by Esri. We are embarking on a new set of initiatives to subtly change from contributing to the various open communities to being more active members of these communities. […]