Will Flickr CEO make any interesting announcements at ETech?
CEO Stewart Butterfield is giving two sessions at O'Reilly's Emerging Tech conference next week, entertainingly called "Web Services as a Strategy for Startups: Opening Up and Letting Go" and "Folksonomy, or How I Learned to Stop Worrying and Love the Mess." So this could be the venue where the announcement happens.
But I wouldn't bet on it. ;-)