My first few hours of work with VS 2008 have been a pure joy. This new beast performs like a champ and has no apparent quarrels with Vista. Upgrading the Data Port Console solution to the 2008 format was a breeze and I was even rewarded with a C# compilation error that had gone unnoticed in VS 2005. The whole product feels much more robust and reliable under Vista and the visuals are also nicer. So far, it has been a great experience. Highly recommended!
Don't worry - if I have anything to gripe about, you will know it.