PDC (Professional Developers Conference) 2005 is just under a week before it kicks off in Los Angeles. Attendees will be given a ?goodie? bag which consist a Windows Vista build out of all the other ?yummy? goodies. The Windows Vista build that will be given out to PDC 2005 attendees will have a ?birth mark? of Build 5219, a post Beta 1 build of Windows Vista. Windows Vista Build 5219 will include:

New Aero Glass Effects, such as Alt+Tab and new feature which closely resembles Mac OsX?s Expose.

New version of the famous solitaire and probably other classic Windows games. These games will be based on Avalon.

Screenshots and more information: XPSource