No - afaiaa the target dates still stand: Corporate/Volume/Open available November 2006 and Retail Feb 2007. I installed 5728 and although the installation does appear to take longer than 5600 - various fixes have been implemented, as previously discovered with startup sound etc. One fix I have been waiting for has been done now - in 5600 the vpn would reboot the workstation almost immediately on a connection attempt. 5728 now allows a PPTP connection - with superb performance! Excellent feature which appears far better than XP's equivalent system/setup and control. Also the Widgets work in this build (weather and currency) - and the new 'rev counter' to display the CPU/RAM load is a really nice touch. Some new screen savers and wallpaper have been added with better grouping/classification. On the downside - the Media Centre appears worse - and my Freecom USB DVB stick which worked great in 5600 now works very intermittently and the controls delay badly between screens - but only in the 'MCE' mode. Hopefully this will be addressed in the next build, but bearing in mind that the 'corporate'/'business' features do seem to be getting the focus of attention which is not surprising looking at MS attempt to ensure that the Corporates get their RTM on time! I advise that you install 5728 if you can, just if only to see the latest enhancements and fixes.