About a year ago I bought a Motorola DC800 Bluetooth transceiver. My workstation is paired with this DC800 and the DC800 is connected to my 5.1 stereo system. With this setup, I can play all my PC sound over my Harmon Kardon speaker system :-)
I noticed a change in the way Windows 7 handles audio compared to Vista. To redirect the audio from my PC speakers to the DC800 I go to the following Windows dialog…
.. and select the DC800 and make it my default device. With Vista, I have to quit all my open audio applications and restart them to apply the change. This way especially annoying with my gadgets. I have a radio gadget that required a restart of the Sidebar.
In Windows 7 the sound is redirected immediately to my Harmon Kardon speaker system (and back). It works with all applications. Much better!
I’m still very enthusiastic about Windows 7. All my daily applications (SQL Server 2008, Visual Studio 2005/2008SP1, Messenger and Skype, web browsers, VMWare, Office, Kaspersky anti virus and media players (VLC/WMP) work like a charm. But I have to say that I experience also some weird problems like slow Silverlight videostreams, hanging IE8-sessions and my D-disk that sometimes becomes read-only (till reboot).