According to the Verge article it seems that there was a partnership in development of VE that should be referenced no? Anyone informed on how it went and how exceptional this was or not from regular WMF practices?
Topic on Talk:VisualEditor
The credits file for VisualEditor (as auto-published under Special:Version) lists the engineers from Wikia (Christian and Inez) alongside those from Wikimedia (and those from other organisations).