You may have noticed when we looked at the top 10 tech items being sold on Amazon the other day that there were no Vista-based laptops on there. That's because the Vista laptops are more like top 25 material. After all, the high system requirements have prevented many people with desktops from making the switch; so it's natural that notebooks would have an even lower pickup rate. Although it's worth considering that laptops are more often upgraded “whole” (i.e. a new machine with Vista pre-installed) while desktops have a little more inertia in the household. There's a lot more info out there to collate (pick-up rates at Best Buys and stuff are probably way higher) but Amazon is a valuable metric.
Looking at what's available there… I don't see how they can even run Vista on this thing.