It appears that any of the dslr's that don't have the AI metering lever have this switch. That includes the D40, D50, D60, D3000 and D5000 series bodies.
What I find interesting is that all manual focus lenses with AI, AIS or factory AI conversion kits also activate this switch when at minimum aperture. However I have not found any Nikon body that makes use of this feature when using a manual focus lens. That includes film bodies as well. So either Nikon has a function they thought of in 1976 and haven't implemented yet or the function they thought of was dropped. I just find that interesting.