Ok, it seem no one else as come across this as of yet so i feel tis my duty to ask.
Vow of truth from Ultimate Magic states
"The monk is not allowed to deliberately speak any lies, including bluffing, stating half-truths with the intent to deceive, exaggerating, telling white lies, and so on. This applies to all forms of communication"
So this by extention mean said monk can not bluff in combat for feinting purposes, or cast some illusion spells without Breaking said vow Correct? this has not come up yet but it might cause i have a few players that like to multiclass monk/rouge and monk/Arcane caster.
also it seems to me certain magic items, like the hat of disguise are best avioded by these monks corret?