Cedric said:Someone mentioned the PHBII a bit ago, so I checked. Improved Natural Attack is one of the 'suggested' feats for an offensively themed monk.
As far as I am concerned, that, along with the text about monk's unarmed strike counting as natural weapons for enhancements and the specific allowance of INA in the FAQ....combines to conclude that monks are absolutely allowed to take Improved Natural Attack in accordance with the RAW.
I agree that some designers at WotC are taking this stance. And, it is perfectly reasonable for people to agree with this stance.
However, I disagree that the core rules support this as written.
But, that often happens in the game system. The writing of the rules is not perfect and one set of later designers often ignore or override what was written by earlier designers. Alternatively, the earlier designers did not consider all possibilities and sometimes have errors of omission.
I also think that the PHB II is purposely designed for powergaming. So, a feat that typically adds an extra 3.5 points of damage (and sometimes more) on average when Weapon Specialization adds only 2 points and has another feat as a prerequisite is not exactly surprising.
Btw, Weapon Focus and Weapon Specialization explicitly state that they are allowed for Unarmed Strikes. INA does not.