Petraio,
You're clearly in the dark about Nikon lens designs and what constitutes obsolete,etc,etc. Really simple: the "Baby Nikons" is a term I coined to help people remember what works with them: the Baby Nikons will mount and shoot ANY LENS EVER MADE in Nikon F-mount (except for a couple of rare 1960's fisheye lenses that cost more than a small car). Baby Nikons will mount and shoot photos with ANY autofocus Nikon lens ever made. The diaphragm will be fully automatic. The Baby Nikons are ideal for use with bellows, microscopes, slide duplicators, old telephotos, old wideangles, old exotic,rare zooms, and basically ANY ACCESSORY EVER MADE in F-mount. With the exception of the 21mm f/4 of 1960-62, and a couple of the ultra-rare Niikor fisheyes like the 6mm and 8mm,which are extremely rare.
F-mount is a lot like the Leica M-mount...old....very strong, very capable, and easy to find lenses for. The Baby Nikons are very affordable. They work with ANY F-mount accessory, because they use NO mechanical coupling for metering. They work with ANY AF lens--but will not provide automatic focusing with the 1986-2004 lens designs that use "screwdriver" focusing.
So, it's pretty simple: the people who bought $500 bodies like the D40,D40x,D60,D3000,and D5000 (there are FIVE baby Nikons) can use ANY LENS and ANY F-mount accessory made since 1959. To take photos. There are no connections "needed"--all connections are optional. Buyers of the Baby Nikons can barely afford the pro-level primes that use screwdriver focusing...they buy 18-55 and 55-200 and 70-300 VR and are "done",basically. Nikon caters to higher-end,long-term users more so than newcomers. Nikon has always been that way...they have a huge commitment to "serious" users,and to compatibility and continuity.
You really,really do not understand much about the Nikon system PeePee...you really have no idea...maybe we ought to get into the 2-cam and 3-cam nuances of your discontinued Leicaflex R mount cameras and lenses (laughs). Nikon is what sent Leica into the crapper--is that why you despise Nikon so much? Because in the 1950's their lenses were used on Canon and COntax and Nikon bodies, and sent Leica irreversibly toward its death spiral in professional circles?
Next week, we'll see Canon design its new car, and it will be designed so the gas and brake systems alternate their functions between the two pedals, based on four different transmission gears! Ought to be great fun! (Laughs). 1st gear-brake is brake, 2nd gear brake is gas, 3rd gear brake is brake, 4th gear brake is gas....Air conditioner button also runs the emergency flashers; gear shift also opens the trunk latch; seat adjustment button also runs the windshield wipers; door locks also turn the car on and off. Gotta love 4 controls that run 8 different functions! Great engineering! (not!)