Anonymous has just released a video communiqué endorsing #OCCUPYWALLSTREET on September 17. Using language from our first Tactical Briefing, the video calls on protestors to adopt the nonviolent Tahrir-acampadas model. On the 17th of September, it says, "flood into lower Manhattan, set up tents, kitchens, peaceful barricades and occupy Wall Street for a few months … Once there, we shall incessantly repeat one simple demand in a plurality of voices."
See also signs of support for S17 on Anonymous's Twitter and websites.