Vista is going to have six versions ranging from the most basic to the Vole's Voyce version, with more bells and whistles than a convention of one man band performers. However this creates a few distribution problems as Vole has to organise six different DVDs.
According to PC World, Microsoft has decided to stick all the versions on a single DVD. This will mean that anyone who wants to upgrade to a better version later will already have the disk. All they will have to do is phone in to get the software key to upgrade it.
While this move will make it easier to upgrade, it also will mean that for the price of the most basic model and a product key 'borrowed' from a neighbourhood hacker you will have the full range of Vista at your fingertips. All this will come from a high-quality legitimate disk costing $199 instead of $399.
More at this bog. µ