Commander Lite 1.46
the author of this app says:
This is the ultimate security enhancement for your Palm device. Commander Lite offers a wealth of configurable security functions. For instance, it automatically locks your handheld, hides private records, shows a welcome message, turns on the backlight, runs a particular application or pops up graffiti help. Commander Lite functions can be activated under a variety of different conditions and can also be activated by configurable graffiti shortcuts.