Fbootstrapp is a toolkit designed to kickstart development of facebook iframe apps in both relevant sizes. It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more, styled in the typical facebook look and feel.
I'm not a designer. I tried designing years ago and still do it every now and then, i still love to sketch and i have a street-art background. But i understand designers fairly well, i try to solve their problems with the limitations HTML and CSS pose to us almost every day. And i understand the hardest job a designer, well anyone, can have - working for oneself.