Suppose my character is a monk (and thus can make unarmed strikes with her feet). Suppose that for some reason she's wielding a longbow. Does she threaten the area around her? Can she provide a flanking bonus to her ally the rogue?
Suppose my character is a cleric, but has the Plant domain power:
As a free action, your hands can become as hard as wood, covered in tiny thorns. While you have wooden fists, your unarmed strikes do not provoke attacks of opportunity, deal lethal damage, and gain a bonus on damage rolls equal to 1/2 your cleric level (minimum +1). You can use this ability for a number of rounds per day equal to 3 + your Wisdom modifier. These rounds do not need to be consecutive.
If she is wielding a bow but then activates this power, does she then threaten the area around her, and does she then provide a flanking bonus?
My guesses are yes for the monk and no for the cleric, but I'm trying to find a RAW answer.