User blog comment:Mobo85/Hot off the Presses: "Across the Second Dimension" Debuts August 5/@comment-3347644-20110706022023/@comment-3179130-20110706161121

I have seen a lot of episodes where Phineas is writing with his right hand. Although, I do think his left hand is more dominent. But only 1 in 100 people are natrully born writing with both of their hands. But he certanly could be. :)