Chall06 rerun with Lotta (2013-10-07)

First field test of the "GPS Orienteering" app for Android (virtual control points the app beeps when you get there) . It works like a charm!
Usually it beeps when you arrive to the control point as expected, in 2 or 3 cases we had to wait 5-10 sec for the app & GPS to stabilize. Then it beeped. Cool and very easy to organize trainings