I think that is just the musings of one of the maemo gods and not for mere mortals to understand. I believe you cannot use the keyboard for movement in Assassin's Creed for the reasons mentioned above. You therefore have to use the onscreen d-pad. But you should be able to use the keyboard for jumping. On mine you have to use the "P" key (UK keyboard) so try that. This assumes that you have applied the mido fayad script. If not go to the FAQ linked on post 1 this thread and click on point 7.