I don't normally venture over this way, but here's an article about Apple trying to move into Georgetown. An interesting read about their design running up against "historic preservation". There are also sketches for the four design proposals...
http://www.washingtonpost.com/wp-dyn/content/article/2009/02/04/AR2009020402027.html?hpid=artslot
http://www.washingtonpost.com/wp-dyn/content/article/2009/02/04/AR2009020402027.html?hpid=artslot