iDoodle
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Tools
Undo
Options
Quick Help: Drawing with iDoodle revolves around tapping your finger on the canvas. Dragging your finger across the iPhone's screen to draw would be nice, but this gesture is used by Safari to scroll the window. To get started choose a tool from the Tools palate. To change colors click on the color boxes next to the tools button.
Check out iDoodle2 in the Apple AppStore.