The results presented in this paper

The results presented in this paper show the negative effect of
walking on target selection and reading when interacting with
mobile devices. It was shown that this can be compensated by
increasing the target size when it comes to selection tasks.
Increasing the text size does not provide any benefits as the
positive effects of this are again compensated by the increased
demand for scrolling. Those research results can influence future
work towards the provision of a walking mode in mobile devices.
Especially the interaction with small targets on mobile devices has
gained quite some interest in the last years. This lead to new
interaction techniques such as Shift [21] of Escape [23] being
based on fine granular zooming techniques or gestures. We
assume that, based on the results presented in this paper, those
techniques can‟t effectively be used when walking as very
accurate finger movements or gestures have to be performed. Our
future work will focus therefore on the development of adaptive
user interfaces allowing the user to accurately select small targets
on mobile phone screens. At this we will consider especially the
provision of semi-transparent information on top of the previously
selected information, which helps the user to perform the correct
selections without losing or changing the context.