From Till Harbaum:
Real Freedom is a converter for Phoinix cartridge images. It can convert images from the format used by the Gameboy emulators Liberty (commercial) and Phoinix/PalmBoy (free) and gameboy cartridges stored on SmartMedia using the axxPac into the Phoinix format.
Currently the converter creates a blank RAM image for cartridges with built-in RAM. This means, that saved games are lost when converting cartridges.
The axxPac import routine works with cartridge images in *.gb format as found as used with most gameboy emulators for the PC. The converter does not allow to import cartridges stored in the Phoinix PDB format on SmartMedia. Please use the axxPacShell to import these files from SmartMedia to your Palm.
Cartridges in gb format can be stored on SmartMedia using a adaptor for your desktop PC or with the axxPac using the axxPac FTP utility.