Pretty much yes. However, I was talking about moving into, out of, or through an area where you might be subject to a melee attack.
In regards to the comment about "changing position" or "moving to flank". Keep in mind that changing the direction in which your character is facing IS NOT considered to be movement in the same sense that you are talking about it.
If two characters are fighting and one tries to maneuver around to the other's flank, it won't work cause all the other has to do is change facing with him. (The only exception being if you can catch him by surprise, which would be very hard to do in melee, and you would still need to be able to attack in the same round (as next round he will turn to face you)
Now, if you and a friend were occupying his attention, then you might be able to do it by splitting his attention, thus allowing one of you a better change to get flank or rear bonuses (and even then only for a moment or two (for the rear bonuses).
Normally, combat is presumed to include some incidental movement (i.e. changing facing, moving forwards and back in small amounts (one or two steps, i.e. about 5-6'), etc..), and it is considered to average out (i.e. net change of zero) without special maneuvers being performed.