Ron, assuming you have your wish list fulfill, but bootloader is still bootloader, how are you to protect the code that you are sending into the chip? and you would probably need a modem onboard for you to do it professionaly and trouble-free for the customer. You need a total solution. There are people selling that. cheers, ling sm -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads