Today in a newspaper advertisement for Dell computers directed at business
customers, the ad gave customers a choice of Windows Vista or Windows XP for
each computer being offered. I've never seen anything like this before. In
the past, once a new version of Windows had come out, Dell sold all its new
computers with the new version.

What this seems to indicate is that Dell is aware of the problems with Vista
and the unhappiness many users have expressed about it, so they want to
attract more customers by giving them the option of buying XP.