DWAINE..zards.

[Zamujasa]

You can also create your own cartridge (slowly and painfully) by copying/pasting programs from a ROM cart to the PDA itself, then to a EEPROM cart and deleting the PDA copy.

Not really useful, since the number of PDA apps that are actually of general use are pretty small (though Robustris is always a nice 8u of free space I guess, if you want to copy Ticket Master or Health Scan)