Thibaud Ringenbach, a french F3F pilot, developped a small but great application running on Android providing a F3F stopwatch and more. You can enter the pilot names, or import it via a txt file. Then you can record the times associated to each pilot. It is possible to enter the time manually and overwrite the time recorded by the application. You can also export an output file with times and penalties.
Other improvements and feature are in progress.
From now, this application is downloadable on the Android Market. it's free, it's Opensource, it's great !!! except if you have an IPhone :) !!!