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ok :) but don’t forget my name in the credits :D
Maybe with this feature:
Optional: For spread the word you can pay the double price, then the sms have a link with a textcoin. Now the receiver of sms know the byteball app and have enough bytes for send a sms back :D

I can provide a python/c gsm (if my memories are good) module (Teltonika model TM2 with an easyGSM/GPRS TM2 board) if required. Old FPGA smartphone project 😉

There are much easier ways nowadays to send SMSes :P