Late last month, Microsoft finally issued its first public build of Longhorn, build 5048. Also known cryptically as the Longhorn Developer Preview, Longhorn build 5048 was actually created on April 1, 2005 and does not reflect some of the advancements Microsoft has recently made. That was by design: Longhorn build 5048 is designed largely for device driver writers and, as such, does not include many of the user interface niceties we're expect from Longhorn..



Link: Winsupersite