Windows Vista will be released later this year to partners and volume license customers and in the beginning of 2007 to the masses. A successful release of a software product such as Windows Vista requires that a lot of consultants use it and can recommend it to the companies.
The last few days it has come out in the open that Windows Vista will not support Microsoft Visual Studio 2005 until the first service pack is released, during the first half of 2007, and even then it will be compatibility issues. Visual Studio.NET 2002 and 2003 will definitley not be supported on the Windows Vista platform!