Hi,
For all .NET developers there is good news regarding windows vista development.
.NET 3.0 developement tools and documentation is available.
You can get it here
http://msdn.microsoft.com/windowsvista/downloads
/products/getthebeta/default.aspx#runWinFXApps
If you require more infor regarding which operarating system it supports then please do check
http://blogs.msdn.com/tomarcher/archive/2006/07/17/668572.aspx
Happy Programming!