Actually, I need to know if anyone knows the serial communication commands. The Palms also have an RS232 serial port. I intended to use this. If nobody has this info, I think I can hook a null modem (crossover) serial cable between my two serial ports. I will have the firecracker software emit commands on com1, and set up a terminal program to catch them on com2. Then all that's left is to look at the bits and figure out the protocol. However, if someone's already done this, no point in reinventing the wheel.