By the way, NONE of Canon's cameras have a focus motor in them.
...But every Canon lens is an AF lens. So that's "essentially a non-issue."
Well lets review some history so everyone is better informed.
As Derrel pointed out, every Canon lens is
not an AF lens. Note: We won't count the specialized Canon and Nikon macro and tilt/shift lenses of today that are manual focus only.
Derrel also pointed out that Nikon introduced the Nikon F-mount in 1959, and Nikon still uses the F-mount today.
Pay close attention now because the history of Canon lens mounts is not nearly as simple.
In 1959 Canon used their
R-mount, but replaced that with the
FL-mount in April of 1964. The
FL-mount was replaced by Canon in March of 1971 with the
FD-mount, which got tossed by Canon in 1987 when they intro'd the
EF-mount as part of the EOS system.
The EOS system eliminated all mechanical connections beteween the camera and the lens. No Canon lens made before 1987 will auto focus, or directly mount on a Canon EOS camera, though you can use an adaptor ring to mount an Canon FD/FL lens to a EOS camera.
EF stands for Electro-Focus. EOS stands for Electo-Optical System.
Canon wasn't done with lens mounts yet though. Canon introduced the
EF-S mount in 2003 for use on their APS-C image sensor cameras.
So today Canon has
2 lens mounts out there; the EF and the EF-S.
Canon's APS-C cameras will accept
both lens mounts, EF and EF-S, making the 2 lens mount issue somewhat transparent to most Canon DSLR camera buyers, but the EF-S lenses will
not mount on Canon EF camera (APS-H or full frame) bodies.
Nikon realized about 2002 that with the growing popularity of digital cameras, more and more women were becoming interested in DSLR type cameras, but were put off by the size and weight of the cameras that were available.
So to make a more compact, lighter camera that would appeal to women buyers, Nikon designed a camera without the auto focus motor and auto focus screw-drive system, the Nikon D40.
Nikon had been producing AF-I lenses with a coreless DC auto focus motor in them since 1992. The AF-S, in-the-lens ultasonic Silent Wave motor was introduced in 1996, so the lack of an auto focus motor was moot relative to the introduction of the D40 in late 2006, 14 years after Nikon started putting AF motors in lenses.
So Nikon has had 2 tiers in their entry level lineup of cameras since November of 2006 when the D40 was launched. The compact, lightweight, 'baby' Nikon's - D40, D40x, D60, D3000, D3100, D5000, D5100, and the entry-level cameras that have the auto focus screw-drive system - D50, D70, D70s, D80, D90, D7000.
I have a question for those more knowledgeable about Canon.
Why doesn't Canon offer spot metering mode in their base entry-level cameras? Even their newest - the T3 - doesn't have spot metering?