1. A method for determining the area of an anatomical surface feature, the method comprising: capturing an image of the anatomical surface feature with a capture device of a handheld unit, wherein the handheld unit comprises a PDA, notebook, ultramobile PC, tablet, or cell phone; displaying the image of the anatomical surface feature to a user via a touch-screen display of the handheld unit; creating an outline of the anatomical surface feature on the touch-screen display, wherein creating the outline includes enabling the user to trace at least a portion of the outline on the touch-screen display; enabling the user to adjust the outline manually by selecting and moving a portion of the outline to change the position of the portion relative to the image of the anatomical surface feature, thereby creating a revised outline of the anatomical surface feature; and determining the area of the anatomical surface feature based on the outline or the revised outline.