That's because it was John Paul's coat of arms. He doesn't have a papal coat of arms yet, so they just used the most recent one.
You can find his papal coat of arms here:http://www.excurs.ru/popes/Popes_arms.htm
hey stunards-bene16 does NOT have a PAPAL coat of arms yet - people are speculating on his arms as cardinal-wait and see-no coat of arms yet you IDIOTS!!!
It's not necessary to be rude, Anonymous.
He has a new coat of arms. He has abolished the papal tiara and replaced it with a mitre. The shield is divided into three by the hill of mount carmel, in the left hand section there is a bear carrying a pack, opposite a moor and at the bottom a shall. Underneath the shield is the pallium.