[True Seeing] does not negate concealment
James McMurray said:This came up in my last game session and I ruled that True Seeing does not grant sight, it only augments sight the target already posesses.
Camarath said:True seeing does state that "You confer on the subject the ability to see all things as they actually are.". So if you wanted to allow "the ability to see all things as they actually are" to include the "the ability to see" I think you could do so with out going out on to much of a limb.