New docs cover the Device Interface. This still needs more documentation. Changed the way the Vision Module handles things like moving and co-located objects. If attention is moved to that location and there's nothing there, it will look for the nearest matching feature. Similarly, if attention is moved and more than one thing is found there, it will use the one that generated the location chunk.
Size is roughly area in squared degrees of visual angle.
Cursor movements have changed. RPM will now do an appropriate width computation based on the target dimensions and approach angle to get better Fitts' times. The Fitts' coefficient is now a standard parameter. Movement output is now staged, that is, it happens incrementally rather than all at once. Another change in the visual source activation stuff.