I have been a user of Linux and Windows for years, and I recently bought my first Mac for home use (I also use one at work for some projects). One feature that I really enjoy about Windows XP and some Linux window managers (such as Gnome and KDE) is the ability to have multiple desktops running at once. Is such a feature built into OS X 10.4 or slated for version 10.5? I found one third-party application called, Desktop Manager, but it is only in the Alpha stages of development and has not been updated 9 months. Are there any other third-party applications that allow for multiple desktops on OS X? To me, it just seems like the feature would fit in very well with Apples push to have the best user interface.