Bill Veghte from the Windows group at Microsoft sent out a nice big memo to those who still haven’t installed Vista in their enterprises and are waiting for some real improvement before they even consider it. His advice?

Windows Vista offers significant advances in security and productivity and we recommend that enterprises that have not yet deployed it should absolutely evaluate its benefits. If you looked at Windows Vista previously and had concerns, the combination of Service Pack 1 and improvements made by our partners probably fixed many of the issues you were worried about and we encourage you to take a second look.

Translation: Spend more man-hours poring over our software. We’ll wait!

He then goes on to say:

If you have existing PCs running Windows XP, then you can use Windows XP for as long as you need. If you do stay on Windows XP, we recommend you install Service Pack 3 and Internet Explorer 7.

Translation: If you’re not going to drink this Kool-Aid then you might as well stay safe.

Not terribly compelling reasons to leave, Bill or even to stay. I know Microsoft’s whole financial plan involves “selling lots of copies of Windows” but there if Vista ain’t gonna sell, it ain’t gonna sell. Keep trying.