The D60 replaces the D40x.
Sorry to be pedantic, but .....
If you take a cursory glance at the Nikon catalogue, you will find the D60 being presented alongside the D40x.
Nikon UK - Products - Catalogue - Digital Cameras - SLR - Consumer
The eventual plan may be to kill off the D40 series, but for the time being, you should see them side by side in the shops.
Whether anyone wants a D40 is another matter ....
