I've resisted for a while, but this post inspired me to comment.

Vista is a product that has been some time coming. In fact I can remember having discussions at Microsoft back in 2003 about the product.

Microsoft have trimmed features - check this item back in 2004, back when Vista was better known as Longhorn. With that piece, Microsoft trimmed those features to make a 'First half 2006' release date.

Now we hear its been pushed back, effectively by another year.