I remember reading something that made the AF system sound closer, not the same as, but closer to the Rebel than the 50D, my bad if I'm wrong though. It seems like Canon felt the 50D was too close to the 7D for some inexplicable reason.
Do you have a link for that? I've read nothing like that so far. Everything I read indicates that the AF hasn't changed from the 40D/50D (the 10D/20D/30D had a similar system to what is now used on the rebel cameras). The only thing the 60D is missing is micro-adjustment (which the 50D had).
60D/50D/40D: 9 cross-type AF points, center point additionally sensitive with lenses of F2.8 or faster
Rebels (XSi - T2i): 8 line sensors (outer focus points) + 1 cross-type center point, additionally sensitive with lenses of F2.8
The XTI had a similar setup but was missing the extra sensitivity for f/2.8 or faster.
Original rebel and rebel XS had a 7 poimt AF system.
All in all I think the camera is much closer related to the 50D than to the rebel models. It is a step down from the 50D in some points but that's because what was once the X0D-line has now essentially been split into two lines, one slightly above (7D) and one slightly below (60D).