Bad Vista ?

6. Businesses will continue to avoid Windows Vista

Windows Vista will almost certainly sell more licenses in 2008 than it did in 2007, but that doesn’t mean that businesses will deploy it in large numbers. Since a Vista upgrade offers no major value proposition over Windows XP SP2, it’s difficult to see businesses ever widely adopting it under any current scenario. Plus, there have been rumblings that Microsoft might release Windows 7 (the successor to Vista) in 2009, which could indicate that Microsoft is on the verge of simply writing off Vista and attempting to move the majority of Windows users directly from XP to Windows 7.

source : TechRepublic