An increasing consumer problem concerns the disappointing image quality of many digital prints, and the unavailability of simple, user-friendly remedial procedures. Thus the proportion of pictures printed from those acquired using digital cameras is falling dramatically, and especially from those taken with the newer generations of portable devices. We have previously described the evolution of a real-time image-processing methodology that enables non-technical consumers to optimize their personal images according to individual preference in an entirely intuitive manner. In light of the ability to place this software at any point where a consumer interacts with an image (camera, portable device, scanner, printer, photo-kiosk, desk-top, document processor, etc), we have used the term ubiquitous image processing to encompass all these applied fields. Here we will describe our experiences in applying this user-friendly technology to the latest-generations of touch-screen portable devices, and the technical problems encountered while doing so. These problems have included adapting the image-quality choice hierarchy to the smaller screen sizes, and solving the computational limitations imposed by these devices in order to provide real-time user access to optimum image quality. In addition, it has been necessary to adapt and develop software versions across the gamut of competing operating systems used by these latest touch-screen devices, while at the same time minimizing the application file-size. Practical examples will be demonstrated of fully operational installed versions, including automatic features and a sharpness capability, yet with overall size as installed kept below 100kbs.