I have noticed that my pdf states that I add my CHA to AC only, whilst the srd here http://www.d20pfsrd.com/classes/base-classes/oracle and here http://paizo.com/pathfinderRPG/prd/advanced/baseClasses/oracle.html state that CMD is also affected.
My question is, that when using Nature's Whisper do you get your full CHA bonus or is it limited by the max dex of the armor? EX: Full Plate with a CHA of 16 , do you get the full +3 or just the +1 allowed with max dex?