At the dana centre London, apparently for the Take Away Media-event.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/33503255@N00">Sascha Pohflepp</a>
CC BY 2.0
originally posted to <b><a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a></b> as <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/33503255@N00/119945422">Sea of phones</a>