Here is info on the binary cam
http://urbanarchery.com.au/binary.php
The Cam 1/2 system can go out of time and is actually quite sensitive to it. It won't produce as bad results as an out of time twin cam does, but can still cause you misses that you were not expecting.
While the cams are tied to each other, one is still attached to a limb, and should that length change, then you have problems.
The Bowtech cam has no cables attached to the limbs at all. This means that both cams work together. I have added 10 twists to one of my cables and still had perfect nock travel and perfect timing.
After a year of solid shooting I have yet to find a single problem with this cam design.