From a marketing standpoint, I'm sure Nikon has tried to evaluate how many D40 owners want a prime lens, and whether or not it's a smart marketing move to address that demand, whatever it is. I suspect the majority of D40/D40x purchasers are satisfied with their kit lens.
If Thom Hogan's predictions are correct and the D40/D40x goes away, leaving the D60 as the bottom of the lineup, the whole issue of Nikon revising their prime lens lineup in order to accommodate a single low-end camera becomes much less urgent.
If Thom Hogan's predictions are correct and the D40/D40x goes away, leaving the D60 as the bottom of the lineup, the whole issue of Nikon revising their prime lens lineup in order to accommodate a single low-end camera becomes much less urgent.