Activewin have uncovered what they are calling new information regarding Audio/Video in Longhorn, Microsofts next generation of Windows. Theres no link to the datas so I"ll leave you with what we found on AW.
Windows Longhorn Audio/Video User Experience Working with audio and video devices in Windows will be easier in next generation Windows for both application developers and end users. The Audio Video Devices Group in the Windows division is working on both Windows platform and device UI enhancements that will make it easier for users to set up, test, configure, and improve their experiences with speakers, microphones, sound cards, video, and TV tuner cards. This session is an overview of new audio video device support infrastructure and UI that will make AV devices "just work" within Windows and Windows applications. Topics covered include AV device installation, setup, configuration wizards and Control Panels, Windows Volume Control and Application mixing, and an overview of the new Audio Video Preferences Control Panel.