Applications of image processing include such popular consumer features as light balancing and facerecognition, now standard on most digital cameras, which can also be associated with voice recognition.
The real hotness is going on in the former: the T30 packs a 3-inch touchscreen LCD, 3x zoom and 7.1 megapixel CCD, along with facerecognition for beefing up auto focus and auto exposure, high ISO digital shake reduction and some stylus-based frivolities.