Aye There!!!

From now on you can use new feature introduced by Facebook, called - Frictionless Payments. Currently available in Mighty Pirates, Zoo Paradise, It Girl and shortly in Happy Pets and Happy Aquarium. Frictionless payments enable people to make small purchases (currently 30 credits or less) with no friction -- and almost instantly. Instead of using the Facebook Credits user interface, these purchases happen directly in the game’s UI, making it easy for people to make purchases without interruption.

We hope that your purchases will be even more easy and pleasant than before!!!

Source - http://developers.facebook.com/blog/post/458/

Thanks

R.C