PMA 2007: The dpreview team have been in Las Vegas for two days in preparation for the PMA 2007 trade show which opens its doors this morning. We will of course be bringing you our usual live-from-the-show-floor reports with coverage of the most important exhibitors and products in a virtual whrilwind tour of the floor. Keep a close eye on our live report index at the top of the front page, on our show report page or subscribe to our show report RSS feed.