Today’s featured promo on MacUpdate offers Scribbles for US$9.99 (50% off, retail $19.95). “Scribbles is a drawing tool for everyone. Whether you want to sketch a cartoon, draw a birthday card or jot down some design ideas, Scribbles can help bring your imagination to life. Scribbles is based around a groundbreaking core technology that allows the artist to break free of the restrictions of typical drawing apps. You never have to pre-define the size of your canvas. You can zoom in to your drawings with unparalleled precision and Scribbles will magically re-render your art so you never encounter a jaggy edge or blocky pixel.” Scribbles requires Mac OS X 10.4 or later.