The long awaited update has now been submitted to the Apple iPhone App Store to support Joomla! 1.6 sites!  The new app will continue to work with the old plugin for 1.5 sites.  A component that works with both 1.5 and 1.6 sites is also being released.  It can take Apple a week or two to review an app.  Once it has been approved, I will make another post.  Thank you for your patience!