Does anyone kno what Penelo's weapon in XII is to be? I kno all the other character's weapons except for her's.

I don't think there is any screenshot of Penelo with a weapon. Or of Penelo fighting, all in all. Well, there aren't that many screenshots of her in any case, and all are form one scene, as far as I know.

There's been the speculation that her fighting will have to do with her talent in dancing.

But we will have to wait and see.

I guess Shruiken.

I read somewher she was a martial artist, so she could have fighting moves(or limits) like Tifa or Zell.

Ya I heard that she is very into dancing in singing. I could see her using a glove or somethng similar.

i think that she would probably be like the songstress drees sphere in ffX-2 due to her love of dancing

Yeah Penelo uses Martial Arts. And likes singing and dancing, and Vaan