Machankura v2.0 to Turn Feature Phones Into Bitcoin Signing Devices

"Java Card is software that allows applets, basic computer programs that perform specific tasks, to run on smart cards, which communicate with the SIM cards in the phones. In this case, the Java Card software will enable African users to hold their bitcoin private keys, sign transactions and see their UTXO balance."

https://www.nobsbitcoin.com/machankura-v2-0-teaser/