Apparently they errataed it later so that the second attack had to be against a different creature.Dual Strike Fighter Attack 1
You lash out quickly and follow up faster, delivering two small wounds.
At-Will ✦ Martial, Weapon
Standard Action Melee weapon
Requirement: You must be wielding two melee weapons.
Target: One creature
Attack: Strength vs. AC (main weapon and off-hand weapon), two attacks
Hit: 1[W] damage per attack.
Increase damage to 2[W] per attack at 21st level.