If you don't know which one you need, pick DiscGolfer.jad.
This is DiscGolfer, an application for tracking
(disc) golf scores for mobile phones. It is free, open-source software,
licensed under the GPLv3, developed on my free time.
DiscGolfer.jad can be installed on Symbian (Nokia)
and other MIDP Java phones (SonyEricsson, BlackBerry,
basically anything but Android/iPhone). You will also
need the DiscGolfer.jar file. Just clicking the jad on
your phone should download it too.
Manual installation is done by downloading both files and
clicking the jad file on the phone.
From version 1.02 onwards, touch phones are supported.
Version 1.03 fixes the on-screen keypad appearing on Nokia N97
and similar devices.
discgolfer_0.3.0-1_all.deb can be installed on Nokia N900
and other Maemo devices.
It requires libswt-hildon from extras-devel to work.
DiscGolfer-platform-architecture.jar (for example DiscGolfer-windows-x86.jar)
is a testing version for that platform. Currently testing is done mostly on
real devices, and this version is likely to be outdated.