If you're using handhelds (Palm Pilots),
events are navigated in much the same way as on your desktop or laptop computer.
In this screenshot, the handheld user could be the marshal at a jump pit,
or move from station to station with the Palm in his/her pocket.
Each screen on the handheld is fully interactive,
with lines and controls "tappable" with the handheld's on-board stylus.