December 21, 2010
Since the Joomla 1.5 Beta's -- so a while now.
I write the EasyTable for J! and EasyTable Pro components (http://seepeoplesoftware.com), manage the technical aspects of about 80 Joomla based websites (most of which we've built) and provide content management for about 30 of those.
No answer yet
I started building websites in 90's for clients like Telstra, Greater Union, Tickertek, TVSN, Beyond International and the list goes on… Since 2005 we've been deploying mostly Joomla based websites with the occasional Drupal one.
A great group of people!