When reading the rules from PH3.5 about feints, it states that a feint is a standard action, or with the feat "improved feint" it can be a movement action.
So unlike with others special attacks that can replace one attack in a full round attack, a feint cannot replace a single attack roll. One who has no particular feat dedicated to improving feint must use the full round to make a movement action (if useful) and a feint, then wait for the next round to benefit from the feint.
But during that time, the enemy might counterattack or move, so I wonder how my feint can be effective until the next round. The rule would be much more understandable if a feint was a replacement of any attack roll, so that for example someone fighting with two weapon could make a feint with its off-hand, then immediately attack with its main-hand, or a warrior with several attacks per round could make a feint on first attack, then take benefit from it on the following attack don't you feel?
And in case you know of different rules from any 3.0/3.5 rulebook, please give the book name, so that I can show it to my MD.