Patryn of Elvenshae said:No, he may not.
When using Flurry of Blows, a monk is limited to unarmed strikes and special monk weapons. Natural weapons are neither, and therefore may not be used in conjunction with Flurry of Blows.
Thanee said:Actually, you can use natural weapons in conjunction with a flurry of blows,
SRD said:When using flurry of blows, a monk may attack only with unarmed strikes or with special monk weapons (kama, nunchaku, quarterstaff, sai, shuriken, and siangham). She may attack with unarmed strikes and special monk weapons interchangeably as desired.
Thanee said:The FAQ seperates the use of natural weapons in a flurry and together with a flurry.
And while I also do not agree with everything written in the FAQ, it is official