There is a unique serial number on each SD card. That could be used as part of the installation verification for high value software. If you're really involved with high budget software, join the SD association and learn about how to utilize the SD security facilities.
All of the system identifiers can be spoofed by a hack. System calls that ask for security information highlight the code involved in security. If you want to turn crackers into customers, how about the following game. Offer a prize for the first contestant to crack your security. In order to participate, a contestant has to either purchase a legitimate copy, or wait for someone else to win the prize. -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
