Codez4Palm is an extensive database of PalmOS registration codes packaged in a convenient app you can bring with you right on your Palm OS device! Also features MultiUserHack integration to allow registering individual apps with unique HotSync IDs. You can also keep track of your own registration codes by adding them to a private database within the app.
Palm DOSBox is a source port of the popular DOS x86 platform emulator for Palm OS 5 devices. This port exists in an alpha state with many features not implemented or fully working, but can still be used for basic tasks.
Timidity is a MIDI-to-wave library for Palm OS used by certain applications (such as source ports) for music playback that wouldn’t be possible with Palm devices’ built-in synthesizer.